TOPIC FIELDNOTES
How traditions, norms, beliefs, and technologies spread and change.
David Pinsof explains how the negative impact of status-seeking varies across different environmental and economic contexts. In resource-poor settings, ostentatious displays of wealth can be beneficial, whereas in wealthier environments, individuals tend to adopt covert strategies like stealth wealth to avoid being viewed as greedy or narcissistic.
↗ 16:14 – 24:01Dave Pinsof and Dave Pietraszewski discuss how viewing human activities through the lens of status competition can help identify toxic versus beneficial social structures. With attribution to the speakers, they examine science and market economies as status games that drive societal improvements, while analyzing public hostility toward capitalist systems.
↗ 1:12:11 – 1:19:44The speakers examine the pursuit of status, noting that while status can be acquired through negative behaviors, an open information structure encourages achieving it through beneficial contributions and intellectual insights. Pinsof also reflects on his early dislike of traditional schooling contrasted with his deep fascination for evolution and psychology.
↗ 1:43:44 – 1:48:16Dave Pietraszewski and David Pinsof discuss how modern education systems fail to foster genuine curiosity or insight, instead acting as a mechanism for signaling desirable employee traits such as conformity and rule-following to the marketplace, referencing Brian Kaplan's work.
↗ 1:48:17 – 1:52:47The hosts explore historical efforts to design education around autonomy and discuss how understanding institutional incentives and status games from a Darwinian or realistic perspective is necessary for creating meaningful reform.
↗ 1:52:47 – 1:56:18Dave Pietraszewski shares his academic background at UC Santa Barbara and reflects on his childhood experiences growing up around evangelical groups and fringe religious communities in upstate New York, which shaped his perspective on human nature versus cultural determinism.
↗ 2:54 – 12:04Dave Pietraszewski and David Pinsof discuss how personal experiences with religious groups led to an intellectual awakening around human nature. Pietraszewski describes stumbling upon Donald Brown's book Human Universals, which provided a framework that resonated deeply with his questions about cultural relativism and innate human psychology, a reaction also shared by Pinsof through Steven Pinker's work.
↗ 12:04 – 16:37The hosts examine Donald Brown's ethnographic list of human universals, going through traits starting with the letter A. They then reflect on Pietraszewski's background growing up around charismatic religious meetings in Buffalo, New York, discussing how observing these environments developed his critical thinking and long-term interest in human behavior.
↗ 16:37 – 24:08Dave Pietraszewski and David Pinsof discuss the appeal of evolutionary psychology as an antidote to dogmatic thinking and status-driven rhetoric. Pietraszewski reflects on his early distaste for ideological conformity, comparing it to basement revival meetings where truth mattered more than social pressure, while Pinsof introduces the concept of the standard social science model.
↗ 24:08 – 29:12The hosts examine how institutional and economic incentives in academia, public relations, and advertising promote blank-slate ideologies. They argue that theories emphasizing human malleability and the supreme importance of ideas serve to justify social control and elevate the status of intellectuals and policy-makers.
↗ 29:12 – 36:10Host Dave Pietraszewski and guest David Pinsof discuss the importance of integrating rigorous evolutionary theory into the social sciences to serve as a check against human self-deception and self-aggrandizement. They examine the evolutionary psychology of psychology, exploring how well-intentioned researchers and therapists can be swayed by cultural epidemiological forces and institutional selection pressures.
↗ 36:10 – 40:58Dave Pietraszewski and David Pinsof discuss whether foundational concepts in folk psychology—such as happiness, attention, and the unitary self—are true or false, arguing that mental representations often serve evolutionary functions or strategic reputational interests rather than literal accuracy.
↗ 1:36:28 – 1:45:01Dave Pietraszewski and David Pinsof discuss human nature, arguing that humans are fragile and have complex innate needs that require careful consideration rather than mechanistic manipulation. They explore how human groups function as folk constructs enabling cooperation, alliance-building, and coordination, alongside potential negative outcomes like conflict.
↗ 1:48:34 – 1:54:56Dave Pietraszewski and David Pinsof discuss why evolutionary psychology is frequently misunderstood by lay people, noting how complex ideas get filtered through topics of sex and death, political biases, and Dan Sperber's cultural attractor theory. The speakers examine why simplistic caricatures easily spread in culture.
↗ 12:07 – 20:29The hosts explore consciousness as a mechanism for adjudicating between competing internal motivations and desires, referencing the global workspace model. They also examine how social institutions, power distributions, and cultural structures emerge from complex interactions beyond individual psychology alone.
↗ 1:19:20 – 1:24:23Host David Pinsof discusses how modern society's reliance on shallow, transactional relationships fails to satisfy human evolutionary needs for deep, meaningful connections. With input from Dave Pietraszewski, they examine how unfulfilled social needs drive phenomena like cults and political activism, while contrasting this with the adaptive design of human psychology.
↗ 1:36:28 – 1:39:32The speakers pivot to positive developments in the field, highlighting advancements in mate choice debates, behavioral genetics, and cultural evolution from the Paris school. They discuss neglected yet crucial human topics such as communication, reasoning, epistemic vigilance, parenting, emotions, and friendship networks, praising specific researchers who are producing insightful work in these areas.
↗ 1:29:43 – 1:36:15The speakers discuss concerns about how the social capital and credibility of evolutionary psychology are utilized within the scientific community. The episode concludes with acknowledgments, information about guest Daniel Conroy-Beam's Computational Mate Choice Lab, and standard closing remarks from the hosts about future episodes.
↗ 1:54:12 – 1:58:05Dave Pietraszewski and David Pinsof introduce their podcast and guest Jaimie Krems, a professor at UCLA. The conversation quickly pivots to an enthusiastic discussion about Philadelphia, comparing its unique sports culture and "team first" mentality to coalitional psychology and academic communities.
↗ 0:00 – 6:53Dave Pietraszewski, David Pinsof, and guest Jaimie Krems discuss the prevalence of premature advice in social science and how modern urban environments and lack of shared physical architecture contribute to the loneliness epidemic. They explore how small-scale societies and smart city planning historically fostered natural, repeated social interactions.
↗ 48:15 – 55:59Dave Pietraszewski, David Pinsof, and guest Jaimie Krems discuss how shared cultural interests and touchstones help facilitate friendships and social bonding. They explore neuroscience research on brain synchrony among friends watching videos together, and examine whether the decline of broad cultural touchpoints and the rise of niche streaming content contribute to increasing loneliness.
↗ 1:12:19 – 1:18:44The speakers examine evolutionary psychology frameworks for friendship, including the alliance hypothesis and the banker's paradox model of social insurance. Jaimie Krems and David Pinsof discuss how evolutionary perspectives provide robust theories that mainstream relationship science misses, while also noting that researchers often rely too heavily on college student samples removed from real economic hardships.
↗ 1:42:21 – 1:48:24The speakers explore the wider network implications and externalities of friendship, noting the absence of 'friendship' in human universals lists and discussing the cultural lack of precise vocabulary for platonic attraction and courtship.
↗ 1:55:36 – 2:00:26Hosts Dave Pietraszewski and David Pinsof introduce guest Sheina Lew-Levy, a human behavioral ecologist at Durham University. Sheina shares her journey into evolutionary anthropology, starting from an interest in bushcraft and survival schools to discovering foundational literature on hunter-gatherer childhoods that shaped her academic path.
↗ 0:00 – 5:24Sheina Lew-Levy and the hosts discuss the realities of hunter-gatherer subsistence, highlighting cultural evolution, cooperation, niche construction, and the high cognitive demands involved in foraging and using simple technologies like spears.
↗ 5:24 – 12:04The speakers discuss the cooperative nature of foraging and hunting, challenging common misconceptions about gender roles and solo hunting. Sheina Lew-Levy shares her background growing up with an anthropological lens, how she came to fieldwork, and why listening to overlooked groups like children and cross-cultural populations is essential for understanding human behavior.
↗ 12:05 – 18:18Sheina Lew-Levy explains how experiencing culture shock and violating implicit social norms in the field helped shape her research approach. The conversation then turns to the history of anthropology, blending qualitative ethnography with quantitative human behavioral ecology, and the ethical implications of reducing human behavior to numbers.
↗ 18:18 – 24:06Dave Pietraszewski, David Pinsof, and Sheina Lew-Levy discuss the critical role of anthropology in keeping evolutionary psychology grounded. They explore how cross-cultural field research challenges assumptions about human behavior, such as age-based imitation biases, and why maintaining a connection between psychology and anthropology is vital for understanding human nature.
↗ 24:06 – 28:54The speakers examine how Western formal education systems contrast sharply with natural human learning environments found in small-scale and indigenous societies. Sheina Lew-Levy explains how collaborative learning, funds of knowledge approaches, and cultural communication norms offer valuable insights for rethinking modern educational practices.
↗ 28:54 – 36:10Dave Pietraszewski, David Pinsof, and guest Sheina Lew-Levy discuss cultural evolution in teaching styles, contrasting American playgrounds with risky European and German playgrounds. They examine how different cultures approach children's autonomy, public behavior, and community involvement in child-rearing across various countries.
↗ 36:10 – 41:17Sheina Lew-Levy explains how Bayaka parenting and early childhood development reflect their social and ecological environment. She highlights practices such as physical stimulation, alloparental care, and cooperative autonomy, contrasting communal child-rearing with North American individualism.
↗ 41:18 – 48:13Dave Pietraszewski, David Pinsof, and guest Sheina Lew-Levy discuss child-rearing norms in the Congo Basin, contrasting them with Western parenting practices. They examine local views on child development—comparing children to ripening fruit rather than objects to be shaped—and discuss how communal living and alloparenting reduce parental anxiety and judgment compared to Western status competitions.
↗ 48:13 – 55:46The hosts and Sheina Lew-Levy explore the trade-offs between modern Western environments and traditional child-rearing ecologies. They discuss the advantages of modern medical care alongside the drawbacks of isolated child-rearing, highlighting the importance of community spaces and alloparental support for children's socialization and parental well-being.
↗ 55:47 – 1:00:13Hosts Dave Pietraszewski and David Pinsof discuss the integration of playgrounds in European public spaces compared to the US, leading into Pinsof's evolutionary puzzles about his toddler daughter's eating and sleeping habits. Guest Sheina Lew-Levy responds by connecting child behavior to cultural schedules, brain development, and evolutionary contexts.
↗ 1:00:13 – 1:08:06David Pinsof and Sheina Lew-Levy explore parent-offspring conflict regarding sleep arrangements and safety, contrasting Western schedules with hunter-gatherer communities in the Congo. Lew-Levy highlights how egalitarian social structures and nighttime socializing shape different family dynamics and child-rearing pressures.
↗ 1:08:06 – 1:12:17Dave Pietraszewski, David Pinsof, and guest Sheina Lew-Levy discuss why children in Western industrialized societies experience frequent meltdowns and display arbitrary bedtime preferences, contrasting this with hunter-gatherer communities where children have greater daily autonomy and lower frequencies of meltdowns.
↗ 1:12:17 – 1:18:39The speakers examine how peer groups and mixed-age interactions help children learn self-regulation and social norms. Sheina Lew-Levy explains that observational research in hunter-gatherer communities reveals that a large percentage of children's learning happens horizontally from other kids during play.
↗ 1:18:39 – 1:24:17Dave Pietraszewski, David Pinsof, and Sheina Lew-Levy discuss children's unique physical proportions, free time, and peer interactions as drivers of innovation and social norm formation. They explore how children's play and peer-group dynamics in both small-scale hunter-gatherer societies and modern industrialized settings can seed cultural changes that eventually emerge in adulthood.
↗ 1:24:17 – 1:33:36The hosts and Sheina Lew-Levy discuss how children learn complex cultural rules, traditions, and difficult societal topics over time rather than through abrupt adolescent transitions. Drawing on anthropological insights from the Bayaka and discussions around modern parenting challenges, they examine children's continuous exposure to norms surrounding consent, beliefs, and mortality.
↗ 1:33:36 – 1:36:20Dave Pietraszewski, David Pinsof, and guest Sheina Lew-Levy discuss how children encounter death and mortality in daily life, ranging from hunting exposure to diverse cultural beliefs about reincarnation and the afterlife. They also examine peer learning, single-age classrooms versus neighborhood friendships, and how age-based structures shape different societies.
↗ 1:36:20 – 1:42:49Sheina Lew-Levy recounts her initial fieldwork experiences in a remote village in the Republic of the Congo, describing the logistical challenges, initial cultural immersion, adapting to rainforest life, and how enduring relationships turned her field sites into a second home.
↗ 1:42:50 – 1:48:22Hosts Dave Pietraszewski and David Pinsof chat with guest Sheina Lew-Levy about the challenges of fieldwork, personal comfort preferences, and the value of anthropology as a window into human diversity. The conversation highlights the privilege of discussing stories from the Congo Basin and the personal difficulties researchers face when conducting studies far from home.
↗ 1:48:22 – 1:51:07Sheina Lew-Levy redirects praise away from researchers and toward the indigenous communities who tolerate and host anthropologists, sharing an anecdote about hunter-gatherers moving camp to escape unwanted visitors. The hosts then conclude the episode with standard outro announcements and calls to action for listeners.
↗ 1:51:07 – 1:52:50The speakers examine how the alliance-tracking software functions as an evolved learning system that detects social cues predicting human interactions. They argue that racial categorization is a byproduct of these mechanisms rather than a dedicated adaptation, functioning as a social construct shaped by historical patterns of coordination and discrimination.
↗ 53:52 – 1:00:12The hosts discuss the historical critique of evolutionary psychology as relying on just-so stories, touching upon Rudyard Kipling's imperialist background, before wrapping up the episode with listener reminders, requests for reviews, and closing remarks about community support on Patreon.
↗ 2:14:45 – 2:18:32Hosts Dave Pietraszewski and David Pinsof read and react to constructive listener reviews about their podcast, discussing the balance between evolutionary psychology nerdiness, listener hooks, guest interviews, and avoiding culture wars while maintaining a lighthearted tone.
↗ 0:00 – 6:44The speakers transition to discussing field research on ethnic conflict in the former Yugoslavia and the fundamental importance of coordination and common knowledge. Moncrieff and Pinsof explain how signal creation, such as turning house lights on and off or public protests, helps transform private discontent into shared collective awareness.
↗ 18:08 – 24:07Michael Moncrieff reflects on conducting face-to-face interviews in rural and urban communities in the former Yugoslavia regarding the 1990s conflict. He shares harrowing accounts of personal betrayal among lifelong acquaintances during the war, the challenges of applying standard academic survey measures in the field, and how the harrowing firsthand stories impacted him personally and scientifically.
↗ 29:46 – 36:08Host Dave Pietraszewski and guest Michael Moncrieff discuss Michael's research on the natural emergence of the drag queen phenomenon as a high-cost status-building strategy in early gay communities, comparing it to costly signaling models of self-harm practices in specific social environments.
↗ 36:08 – 44:27The hosts talk with guest Deb Lieberman about her long tenure as editor of the journal Evolution and Human Behavior. They explore special issues, publishing trends, anthropology contributions, debates on topics like the evolution of war, and the future potential for applied evolutionary psychology.
↗ 1:15:21 – 1:24:17The speakers examine the challenges facing junior evolutionary psychologists, emphasizing the need for greater engagement with cognitive programs and information processing. Lieberman expresses frustration with vague invocations of culture and learning as explanatory catchalls, arguing that evolutionary psychology should instead serve as the rigorous cognitive science of culture.
↗ 1:31:30 – 1:36:18Dave Pietraszewski, David Pinsof, and guest Deb Lieberman discuss the foundational role of anthropology and evolutionary psychology in social science, emphasizing the importance of cognitive programs, levels of explanation, and honoring the legacy of John Tooby through theory-first adaptationism.
↗ 1:36:18 – 1:43:06Dave Pietraszewski, David Pinsof, and Deb Lieberman discuss the future directions of evolutionary psychology, emphasizing its integration with philosophy of mind, political science, and economics. They explore how understanding the evolutionary origins of human intuitions can help resolve long-standing philosophical puzzles and broaden the scope of evolutionary reasoning.
↗ 2:12:26 – 2:20:19The hosts reflect on academic mentorship inspired by John Tooby, thank guest Deb Lieberman for her foundational contributions to evolutionary psychology, and conclude the episode with humorous banter about listener reviews, Patreon incentives, and podcast fundraising goals.
↗ 2:28:21 – 2:31:36Hosts Dave Pietraszewski and David Pinsof introduce their podcast on evolutionary psychology and welcome their guest, Chris Von Ruden from the University of Richmond's Jepson School of Leadership, highlighting his research on inequality, status, and the Chimane people in the Amazon.
↗ 0:00 – 1:50Guest Chris Von Ruden discusses his role as an anthropologist in an interdisciplinary leadership studies program at the University of Richmond, noting the general reception of Darwinian perspectives among social scientists, the importance of gene-environment interactions, and Tooby and Cosmides' distinction between evoked and transmitted culture.
↗ 1:54 – 12:05The hosts and Chris Von Rueden discuss the distinction between evoked culture, representing strategic responses to immediate environmental conditions, and transmitted culture, which involves social learning and cultural norms that can persist over time. They explore how these two mechanisms interact, lag, or generate complex technological designs through intergenerational transmission.
↗ 12:05 – 21:02Host David Pinsof and guest Chris Von Rueden discuss the demography and health profile of the Chimane people, noting higher mortality and pathogen exposures alongside lower rates of modern chronic illnesses. They examine the role of diet versus exercise in cardiovascular disease and explore the hygiene hypothesis, where childhood pathogen exposure provides protective effects against autoimmune issues despite trade-offs in infant mortality.
↗ 24:08 – 28:50The speakers explore the history, subsistence strategies, and modern lifestyle of the Chimane people in Bolivia. Chris Von Rueden details their historical avoidance of missionization and rubber slavery, their reliance on horticulture and foraging, increasing political integration, and shares a humorous anecdote about receiving news of Michael Jackson's death deep in the Amazon while living in a tent.
↗ 28:50 – 36:14Host Dave Pietraszewski discusses fieldwork experiences with guest Chris Von Rueden, exploring the logistics of living in communities like the Chimane in Bolivia and the evolution of anthropological research toward greater collaboration, reciprocity, and community feedback when studying social dynamics.
↗ 36:14 – 42:32The speakers examine the concept of egalitarianism and critique the persistent 'noble savage' trope found in philosophy and media. Guest Chris Von Rueden explains that anthropological research across smaller-scale societies reveals a more complex reality regarding human status motives, cooperation, and social hierarchy.
↗ 42:33 – 48:15The speakers explore the paradoxes of status competition, where anti-signaling, humility, and rebelling against dominance can themselves be used to gain standing. They discuss how smaller-scale societies enforce moderation in hunting and generosity to preserve autonomy and avoid unpayable debt, contrasting traditional interdependence with modern market inequalities.
↗ 54:02 – 1:00:16Dave Pietraszewski, David Pinsof, and guest Chris Von Rueden discuss how sharing motives shift with ecology and risk. They examine political science and institutional trust across societies before exploring Von Rueden's personal academic transition from history and biology to biological anthropology and evolutionary psychology.
↗ 1:24:30 – 1:34:16Dave Pietraszewski, David Pinsof, and guest Chris Von Rueden discuss the startling transition between modern supermarkets and Amazonian fieldwork. Von Rueden shares hazardous encounters with wildlife and describes the sophisticated ecological knowledge and physical skill required by Chimane foragers to safely fell trees connected by vines.
↗ 1:48:37 – 1:54:08The hosts and Chris Von Rueden review topics not fully covered, such as leadership and academic background, before providing resources where listeners can learn more about the Chimane Health and Life History project. The hosts conclude by encouraging audience engagement and reviews.
↗ 1:54:09 – 1:57:57Host Dave Pietraszewski and guest Brenda Bowser discuss the methodological motivations behind conducting anthropological research in regions with histories of tribal warfare. Bowser shares personal insights on balancing family life, consulting pediatricians, and preparing for long-term fieldwork with rigorous academic training and institutional support.
↗ 12:02 – 16:54The hosts and Brenda Bowser explore the ethnohistory of the Shuar and Achuar peoples in the Ecuadorian Amazon, detailing accounts of resistance against colonial incursions, traditional greetings reflecting potential violence, and local conflict management strategies.
↗ 16:57 – 24:05Brenda Bowser discusses her fieldwork experiences in New Guinea, emphasizing the importance of trust, listening to local community members, and respecting indigenous knowledge for safety. The conversation then transitions to examining the historical context of endemic raiding and violence in the region, noting how older community members and leaders actively worked on conflict management and social reconstruction.
↗ 24:05 – 31:07Host David Pinsof and guest Brenda Bowser discuss the cultural and linguistic equivalence between forced abduction and a young woman voluntarily running off with a partner. Bowser explains early marriage ages, polygyny, and how conflicts surrounding marriage spark violent retaliation, raids, and conflict management strategies like fleeing to distant communities.
↗ 36:09 – 44:21Guest Brenda Bowser discusses anthropological field research in Amazonian communities, explaining how senior leaders step in to evaluate violent incidents and manage conflicts when institutional authorities like police and judges are absent. The hosts and guest examine a specific case involving an apparent murder investigation and how elders evaluate responses.
↗ 48:15 – 53:17The discussion delves into how respected elders use cultural ontologies, such as attributing a death to a phantasm or supernatural means, to de-escalate potential cycles of retaliatory violence rather than simply avoiding personal risk.
↗ 53:19 – 1:00:19The hosts and guest discuss how community members evaluate evidence of violence, attributing deaths to phantasms to help quell cycles of retaliation. Brenda Bowser explains how high-status individuals lead discussions and guide consensus, while noting that outsiders might easily misidentify who actually holds leadership status in the room.
↗ 1:00:19 – 1:04:00The conversation shifts to examining women's agency, status, and social roles within the community. Brenda Bowser details how women lead among women, possess broader access to different spaces than men do, and actively participate in mediating disputes and building political consensus.
↗ 1:04:00 – 1:12:24Dave Pietraszewski, David Pinsof, and guest Brenda Bowser discuss the historical underrepresentation of women in anthropological literature and ethnographies. They examine how women navigate social conflicts through subtle influence and social ties, reflecting on the importance of long-term fieldwork, deep immersion, and humility in evolutionary behavioral sciences.
↗ 1:12:24 – 1:20:36Host Dave Pietraszewski, David Pinsof, and guest Brenda Bowser discuss the multidimensional and situational nature of identity, distinguishing between foundational ethnolinguistic identity and active political allegiance. The speakers examine how political affiliations and alliances often matter more than strict ethnic group membership in understanding human social behavior and community dynamics.
↗ 1:24:26 – 1:29:57Brenda Bowser, Dave Pietraszewski, and David Pinsof explore how material culture, specifically women's pottery designs, reflects political affiliations rather than just ethnolinguistic identity. They discuss how everyday behaviors like sharing meat and crafting pottery serve as active signals for alliance building and coalition formation within communities.
↗ 1:29:58 – 1:36:27The speakers examine whether status and coalitional support are identical or distinct dimensions of social relationships, noting how factors like age and community participation influence an individual's standing and conflict support networks.
↗ 1:46:20 – 1:48:34The hosts and guest Brenda Bowser discuss how status functions in small-scale societies as a relational attribute tied to coalitions and alliances rather than a fixed individual trait. They compare social structures across different groups, highlighting how mediation and relationships shape community influence.
↗ 1:48:34 – 1:53:01The conversation shifts to matrilocal residential patterns, bride service, and how young men navigate behavioral expectations within their fathers-in-law's households. They examine reproductive consequences for bullies and how novel political contexts might generate new status-seeking behaviors and leveling mechanisms.
↗ 1:53:02 – 2:00:36The hosts and Brenda Bowser examine how personal backgrounds involving open homes and extended family life pre-adapted researchers for fieldwork. They discuss navigating social boundaries, depending on community permission and hospitality in indigenous territories, and the extensive time required to build relationships before starting research.
↗ 2:07:25 – 2:12:38Brenda Bowser discusses ethical considerations in anthropological fieldwork, including community benefits, health promotion, and asking permission before entering a research site. She reflects on decades of research in Konambo starting in 1992, noting generational shifts such as increased literacy and Spanish fluency, while highlighting the importance of continuous learning and avoiding tropes about vanishing cultures.
↗ 2:12:38 – 2:20:09Brenda Bowser and the hosts explore changing community leadership dynamics and generational transitions in Konambo, comparing them to academic institutional dynamics. The hosts then thank Bowser for her insights and conclude the episode by reminding listeners to share, rate, and support the podcast on Patreon.
↗ 2:20:09 – 2:22:40Hosts Dave Pietraszewski and David Pinsof introduce anthropologist Cristina Moya from UC Davis, discussing her academic background, her intellectual rigor, and the productive intersections and historical debates between different branches of evolutionary social sciences, such as UCLA cultural evolution and UCSB evolutionary psychology.
↗ 0:00 – 8:17Dave Pietraszewski, David Pinsof, and guest Cristina Moya discuss the major theoretical frameworks within evolutionary social sciences, including evolutionary psychology, human behavioral ecology, and cultural evolution. They examine how these different traditions approach human cognition, adaptive behavior, social learning, and cultural transmission across academic departments.
↗ 12:02 – 20:33Cristina Moya shares her background as an undergraduate at Berkeley piecing together evolutionary social science courses before pursuing graduate studies at UCLA. She describes the vibrant intellectual environment created by faculty members studying human behavior and evolution, which shaped her identity as an evolutionary anthropologist.
↗ 20:33 – 24:06Host Dave Pietraszewski and guest Cristina Moya discuss their shared graduate school experiences at UCLA within evolutionary anthropology and psychology departments. They examine the unspoken difficulties of anthropological fieldwork, environmental challenges, and why studying settings outside the United States is crucial for evolutionary social science.
↗ 24:06 – 30:01Cristina Moya explains how she selected her field site in the Peruvian altiplano to study Quechua and Aymara speakers. The speakers discuss how American ethno-racial taxonomies and migration histories differ profoundly from indigenous agropastoralist settings, offering a cleaner lens into human evolutionary priors regarding symbolic and linguistic group boundaries.
↗ 30:01 – 36:08Dave Pietraszewski, David Pinsof, and guest Cristina Moya discuss the social and power dynamics of indigenous communities in Peru, contrasting them with familiar Western political and class divisions. They examine how land conflicts, economic inequality, and cultural or linguistic differences shape intergroup relations and whether ethno-linguistic boundaries directly drive animosity.
↗ 36:08 – 43:52The speakers explore the geographic distribution of Quechua and Aymara speakers in rural communities, towns, and larger urban centers. They discuss how everyday interactions, intermarriage, and urban migration influence language use, and consider why cultural boundaries persist despite ongoing contact.
↗ 43:52 – 48:14Dave Pietraszewski, David Pinsof, and Cristina Moya discuss language acquisition, pidgins and creoles, social motivations for second-language learning, and how group membership is linguistically and politically signaled through practices rather than fixed identities.
↗ 48:14 – 53:34Cristina Moya defines essentialism, drawing parallels to biological reasoning about species, and reviews cross-cultural research and meta-analyses showing high variability in whether adults view social and ethnolinguistic identities as fixed at birth.
↗ 53:34 – 1:00:17Host Dave Pietraszewski, host David Pinsof, and guest Cristina Moya discuss how social categories and psychological essentialism relate to power, class, and status. They explore whether group boundaries are maintained more rigidly by higher-status individuals and examine how people represent social categories and coalitions.
↗ 1:00:19 – 1:02:43The speakers discuss hypotheses regarding whether skin color or behavioral markers serve as cues for alliance membership and loyalty detection. Guest Cristina Moya introduces ethnographic work from Madagascar by Rita Astudi, which complicates simple assumptions about physical markers, essentialism, and group membership across different cultures.
↗ 1:02:44 – 1:12:22Dave Pietraszewski, David Pinsof, and guest Cristina Moya discuss how beliefs like flat earth theories can function as bridge-burning tactics and social signals that signal loyalty to an extremist group or subculture while alienating outsiders. They explore whether such implausible beliefs affect everyday material interactions and why evolutionary approaches help clarify these social dynamics.
↗ 1:12:22 – 1:20:02The speakers examine how taking an evolutionary approach helps ground the amorphous nature of group dynamics by focusing on practical organismal needs and coordination rather than underspecified categorization literature. They also reflect on documentaries about flat earthers, noting that such subcultural beliefs primarily serve social and community functions rather than arising from rigorous intellectual investigation.
↗ 1:20:02 – 1:24:22Dave Pietraszewski, David Pinsof, and guest Cristina Moya discuss how people process vast amounts of complex information, noting that scientific facts like a round earth or quantum mechanics are highly counterintuitive. They explore how accepting such beliefs relies on trust in experts or social groups rather than personal verification, connecting cultural evolution and cognitive psychology.
↗ 1:24:22 – 1:27:23The speakers examine why people adopt seemingly extreme or outrageous beliefs, such as conspiracy theories or novel religious sightings in the Peruvian altiplano. Cristina Moya and David Pinsof discuss how low-prior, highly diagnostic beliefs can signal social identity, group boundaries, and trust within a community.
↗ 1:27:23 – 1:36:23Dave Pietraszewski, David Pinsof, and guest Cristina Moya discuss whether expressing unusual or wacky beliefs can be used strategically as an entrepreneurial leadership tactic. They compare this to early technology adoption, noting that higher-status individuals can better afford reputational risks. The conversation then transitions to defining charisma, with David Pinsof proposing that it involves successfully sending concealed or paradoxical social signals, such as virtue signaling without appearing to do so.
↗ 1:36:23 – 1:45:57The hosts and guest explore whether concepts like being "cool" differ from charisma, discussing how individuals signal status and coalition value. They consider whether coolness relates more to general respect and perceived genius or to social attractiveness, and how others assess these traits to decide whom to learn from or join in a coalition.
↗ 1:45:58 – 1:48:24Guest Cristina Moya discusses her academic journey from a history major to biological anthropology, inspired by an undergraduate instructor who critically engaged with the field's history. The hosts and Moya explore the role of curiosity-driven basic science, the challenges of translating evolutionary frameworks into real-world policy, and the importance of ethnographic perspectives in avoiding the pitfalls of top-down interventions.
↗ 1:48:24 – 1:58:30Dave Pietraszewski and David Pinsof humorously discuss how audience growth can be compared to exponential reproduction and natural selection, joking that sharing the podcast with others could help them take over the world, blending evolutionary concepts with playful banter about pyramid schemes and listener numbers.
↗ 2:00:26 – 2:00:54As the episode comes to a close, hosts Dave Pietraszewski and David Pinsof exchange casual sign-off remarks, confirming plans to see each other shortly after recording and scheduling their return for the following week's conversation while saying their final goodbyes.
↗ 2:00:54 – 2:00:59The hosts and Ed Hagen explore suicidality and self-harm as an extreme, costly signaling tactic on the continuum of depressive bargaining, noting that while risky, such acts can credibly signal genuine need and are observed across cultures in response to severe social conflicts.
↗ 41:32 – 48:08In the concluding segment, the hosts and Ed Hagen reflect on unvisited topics such as music, dance, and society leadership challenges, before diving into a discussion on academic publishing economics, journal profits, and library subscription costs, ending with podcast outro announcements.
↗ 1:54:28 – 2:00:14Dave Pietraszewski, David Pinsof, and guest Pat Barclay discuss how reputational benefits and stakeholder psychology influence cooperation. They examine whether highlighting instrumental motives undermines intrinsic generosity, how groups monitor behavior, and how institutional structures like advertising or international trade can shape human concerns for others' welfare.
↗ 48:08 – 55:44Dave Pietraszewski, David Pinsof, and Pat Barclay discuss the biological market framework for partnerships, emphasizing how local environments, supply and demand, individual differences, and compensatory strategies shape cooperation, partner choice, and what traits are valued in social partners.
↗ 1:24:21 – 1:31:22The speakers discuss how evolution and learning are not mutually exclusive, highlighting that evolved adaptations can specifically design learning systems. Annie Wertz then elaborates on the vast utility of plants in hunter-gatherer societies, extending far beyond food to encompass material culture, medicine, and chemical uses.
↗ 1:18:29 – 1:24:12Dave Pietraszewski, David Pinsof, and Annie Wertz discuss how humans process plants for food and material construction, comparing modern specialized labor with ancestral hunter-gatherer repertoires. The speakers explore artifact psychology, highlighting how interacting with natural materials like wood and animal parts reveals evolved behavioral motor repertoires that persist despite modern environments.
↗ 1:24:12 – 1:30:00The speakers examine observational learning systems and the lack of explicit teaching in small-scale societies, proposing that media like cooking shows or building videos might satisfy a psychological need for physical interaction with plant environments in modern cultures.
↗ 1:42:38 – 1:48:14Dave Pietraszewski and David Pinsof discuss coordination games, explaining how mutual benefit and common knowledge are essential for human cooperation, group formation, and social organization, referencing historical examples and social media behavior.
↗ 12:01 – 18:01Dave Pietraszewski and David Pinsof discuss how humor functions to filter individuals and coordinate on status games. They examine Flamson and Barrett's encryption theory of humor, explaining how jokes encode background and cultural knowledge to allow subcultural affiliation and covert social exclusion without causing overt interpersonal conflict.
↗ 48:09 – 51:47The hosts examine why comedy ages faster than drama due to its heavy reliance on culturally relative coordination games and social norms, and they analyze physical slapstick as coordination failures and harmless physical mix-ups.
↗ 1:31:51 – 1:36:18The speakers examine the debate between Chomskyan generative grammar and construction grammar. Thom Scott-Phillips argues that grammar and language are not strictly innate adaptations, but rather sophisticated cultural and social conventions designed for expressing and revealing communicative intentions, supported by downstream cognitive adaptations.
↗ 13:49 – 24:05The hosts and Thom Scott-Phillips explore Marvin Minsky's ideas about cognitive frames and how communication relies on coordinating shared ontologies and mental representations. They then transition to discussing human art through the lens of relevance theory and communication, highlighting a paper co-authored by Kate McCallum called The Art Experience.
↗ 30:54 – 36:06Host Dave Pietraszewski, David Pinsof, and guest Thom Scott-Phillips discuss how art functions similarly to language on a continuum of communication. They explore how both art and language raise expectations of relevance, prompting audiences to infer the intentions and meanings behind stimuli, akin to playing a cognitive puzzle or game.
↗ 36:06 – 44:19Dave Pietraszewski, David Pinsof, and Thom Scott-Phillips discuss structural incentives in academia, examining how hiring committees and grant panels often prioritize publication quantity over slow, theory-driven science. The speakers explore the underappreciated value of empirical description and ethnography in the human sciences, noting that while descriptive work is crucial for establishing baseline facts, the current academic system struggles to reward purely descriptive or highly interdisciplinary research.
↗ 1:12:11 – 1:15:57Thom Scott-Phillips reflects on his recent essay detailing the profound career uncertainty and precarity faced by interdisciplinary and theoretically minded academics. The hosts and guest examine how institutional structures fail to incentivize interdisciplinary scholarship and discuss potential systemic reforms, such as creating permanent research scientist positions rather than relying solely on temporary postdocs and faculty tracks.
↗ 1:15:58 – 1:24:13Guest Thom Scott-Phillips discusses the origins and global history of Lindy Hop with hosts Dave Pietraszewski and David Pinsof. They explore how the swing dance emerged from African-American communities in Harlem during the 1920s and 1930s, reflecting values of individual freedom alongside collective coordination.
↗ 1:28:37 – 1:36:15Host Dave Pietraszewski and guest Thom Scott-Phillips wrap up the discussion, mentioning upcoming talks and websites before transitioning into the closing announcements of the episode.
↗ 1:36:15 – 1:36:42Hosts Dave Pietraszewski and David Pinsof discuss ways listeners can support the podcast, including leaving reviews, subscribing, visiting Patreon, and offering feedback on potential merchandise like fanny packs and hats.
↗ 1:36:46 – 1:38:19Dave Pietraszewski and David Pinsof introduce the podcast, welcome anthropology professor Mike Gurven from UC Santa Barbara, and discuss academic departmental structures and the upcoming release of Gurven's new book, Seven Decades.
↗ 0:00 – 6:08The hosts and Mike Gurven explore the lifestyle factors behind the Tsimane and Moseten populations' low rates of heart disease. They examine the role of continuous light-to-moderate physical activity, daily step counts, and the potential impacts of modernization and new labor-saving technologies.
↗ 28:53 – 36:01Mike Gurven responds to the pessimistic take on elder obsolescence by comparing modern attitudes with ethnographic data from hunter-gatherer societies. The speakers differentiate between the young-old and very elderly, discussing how contributions continue across different life stages despite rapid technological and cultural shifts.
↗ 55:10 – 1:00:05Dave Pietraszewski, David Pinsof, and guest Mike Gurven discuss creative community solutions that leverage the wisdom and experience of older adults through mentorship and cooperative programs. The speakers address concerns about moral hazard and free riding, emphasizing that people generally want to feel like contributing members of society when given accessible opportunities and proper coordination.
↗ 1:00:05 – 1:05:52The speakers explore how status as a positional good drives luxury expenditures and investment in children's competitiveness. They also examine how structural factors, such as parental leave and childcare policies, impact fertility rates and how evolutionary psychology intersects with economic and social environments.
↗ 1:17:29 – 1:24:09Mike Gurven explains that Tsimane personality structure resembles a constrained 'big two' rather than independent Big Five factors, comparing it to an equalizer with linked bands. The speakers examine how modern socioecological complexity, diverse economic niches, and job variety expand personality differences compared to small-scale societies.
↗ 1:31:19 – 1:36:13Guest Mike Gurven and the hosts discuss how personality structure varies in relation to niche diversity, comparing modern urbanization and streaming media subcultures to ancestral environments. Gurven explains empirical findings on personality correlation structures and developmental inputs.
↗ 1:36:13 – 1:43:47As the interview concludes, the hosts ask Mike Gurven what topics were left unaddressed. Gurven discusses the future of evolutionary social science, the changing dynamics of small-scale societies, and how researchers should study ongoing cultural and demographic shifts rather than hiding them.
↗ 1:43:47 – 1:48:17Dave Pietraszewski and David Pinsof talk with guest Mike Gurven about human behavioral ecology, his published work, and details on how listeners can purchase his upcoming book through Amazon, Target, or the Princeton University Press website using a discount code. They conclude the interview by discussing the importance of science communication.
↗ 1:48:17 – 1:50:45Hosts Dave Pietraszewski and David Pinsof reflect on finishing another episode, praise their guest selection process, ask listeners for reviews and support on Patreon, and playfully brainstorm unconventional future interview formats.
↗ 1:50:50 – 1:52:28Hosts Dave Pietraszewski and David Pinsof introduce the podcast, banter about their show tagline, and welcome guest Dan Williams, a philosopher from the University of Sussex and author of the Substack Conspicuous Cognition, marking the show's first philosopher guest.
↗ 0:00 – 4:45Dave Pietraszewski, David Pinsof, and guest Dan Williams discuss the psychological distinction between genuine world-modeling beliefs that drive behavior and compartmentalized identity or religious convictions that serve social signaling functions. They explore theoretical frameworks from anthropology and cognitive science, highlighting how cultural narratives and extreme group contexts complicate our understanding of internalized commitment.
↗ 24:02 – 30:54Dave Pietraszewski, David Pinsof, and guest Dan Williams discuss whether human belief formation is primarily truth-seeking or driven by social coordination, prestige economies, and cultural signaling. They explore how social pressures shape our convictions, using examples like opinions on public figures, and how difficult it is to separate genuine epistemic trust from conformity.
↗ 48:07 – 57:01Host Dave Pietraszewski and guest Dan Williams discuss why evolutionary cognitive science offers a fruitful framework for studying human psychology. Williams contrasts the traditional 'you can not handle the truth' model of self-deception with an evolutionary perspective focused on advocacy, propaganda, and social influence, explaining why humans often hold distressing or seemingly maladaptive beliefs.
↗ 1:00:12 – 1:06:26Dave Pietraszewski asks Dan Williams why people push back against critiques of misinformation research. Dan explains that the social sciences skew heavily toward the liberal left, creating coalitional dynamics where any critique is incorrectly interpreted as partisan attacks, ultimately threatening the objectivity and public reputation of scientific research.
↗ 1:20:36 – 1:24:16Dave Pietraszewski, David Pinsof, and guest Dan Williams discuss how demographic skews and social bargaining power within academia, such as in philosophy, impact the questions researchers ask. They examine whether evolutionary psychology debates are driven by genuine scientific inquiry or political agendas, and emphasize the rarity of good-faith intellectual collaboration.
↗ 1:48:23 – 1:51:59In the concluding segment, the hosts Dave Pietraszewski and David Pinsof thank Dan Williams for appearing on the podcast and engaging in a collaborative conversation. They banter about upcoming deep dives into Jordan Peterson, thank their listeners, and encourage support via social media, reviews, and Patreon.
↗ 1:51:59 – 1:54:10The hosts and guest examine the consequences of child-rearing environments, contrasting age-segregated modern schooling with traditional societies where children learn autonomously in mixed-age groups. They discuss how peer interactions shape social regulation, behavior, and the transmission of practical versus abstract skills.
↗ 28:09 – 36:07Hosts Dave Pietraszewski and David Pinsof introduce the podcast, discuss their fondness for Halloween, and share a funny parenting anecdote about a daughter's morbid curiosity regarding rotting teeth. They then introduce guest Coltan Scrivner to discuss the evolutionary psychology of horror and morbid curiosity.
↗ 0:00 – 7:06The hosts and Coltan Scrivner examine the role of episodic memory in consuming scary narratives and true crime. They discuss how stories provide a Goldilocks middle ground of specific details without obvious bottom-line lessons, allowing people—including women watching true crime to relax—to extract insights about danger, threat avoidance, and pattern recognition.
↗ 20:34 – 24:04Guest Coltan Scrivner shares details about his website, Substack, and his new popular science book 'Morbidly Curious'. Hosts Dave Pietraszewski, David Pinsof, and Scrivner reflect on the value of books in inspiring researchers, the unique freedom of writing for general audiences, and the growth of sophisticated cognitive science in areas like horror and humor.
↗ 1:52:36 – 2:00:25The hosts thank guest Coltan Scrivner for joining the show, share lighthearted tips on Halloween costume preparation, and discuss ways listeners can support the podcast through reviews, Patreon, and existential reflection.
↗ 2:03:05 – 2:06:00Hosts Dave Pietraszewski and David Pinsof introduce guest Dr. Keelah Williams, a professor at Hamilton College with both a PhD and a JD. They discuss the intersection of evolutionary psychology and the legal system, noting how psychological science and legal practice sometimes arrive at contrasting conclusions while examining the general resistance of legal institutions to change.
↗ 0:00 – 7:25Keelah Williams and the hosts explore global data relating human development indices to capital punishment and discuss how zero-sum competition rather than absolute wealth drives punitive attitudes. They also discuss experimental findings showing that the perceived value of an offender, such as being a skilled hunter, moderates willingness to banish group members during scarcity.
↗ 1:05:12 – 1:12:15Dave Pietraszewski, David Pinsof, and guest Keelah Williams discuss the hidden psychological machinery underlying legal and political decisions, exploring how racial categories and family structures act as proxies for tracking environmental ecologies and impulsivity across different cultures and species.
↗ 1:24:16 – 1:30:58Dave Pietraszewski, David Pinsof, and guest Keelah Williams discuss how cultural items and behaviors function to signal class membership, status, and ecology stereotypes such as present-orientedness. They explore intersections with age stereotypes and conclude the scientific discussion by highlighting key readings and researchers in evolutionary approaches to the law.
↗ 1:36:16 – 1:41:53Dave Pietraszewski, David Pinsof, and guest Daniel Sznycer discuss the evolutionary function of shame and guilt, comparing the folk intuition that emotions operate in isolation to the scientific view that these feelings act as preventative or reparative mechanisms against social devaluation. They also critique widespread cultural misconceptions surrounding self-esteem interventions.
↗ 36:01 – 45:47Guest Daniel Sznycer discusses with hosts Dave Pietraszewski and David Pinsof how anticipatory shame acts as a mechanism to integrate personal and social payoffs. The speakers examine cross-cultural evidence, including data from small-scale societies and ancient legal codes, demonstrating that the intensity of shame people feel for specific transgressions tracks interpersonal devaluation universally.
↗ 48:04 – 54:46The speakers explore the high precision of evaluative self-emotions, comparing it to a continuous electrocardiogram of social feedback. Citing historical sociological insights and experimental stimuli, they discuss how mundane activities and cultural associations, such as consuming lowbrow media, can trigger shame due to perceived social devaluation.
↗ 1:18:40 – 1:24:16Dave Pietraszewski, David Pinsof, and guest Daniel Sznycer discuss how media choices and behaviors act as signals of intelligence, reputation, and cooperative potential. The speakers explore how self-discipline and delayed gratification function as cues to trustworthiness in social relationships.
↗ 1:24:16 – 1:30:43Dave Pietraszewski and David Pinsof introduce the podcast and guest Anne Pisor, who directs the Sociality Lab at Penn State. They discuss traditional views of group boundaries in evolutionary anthropology and social psychology, noting that researchers often view groups as rigid containers for cooperation and conflict, whereas field research reveals much more flexible and cross-boundary interactions.
↗ 0:00 – 5:48Anne Pisor, David Pinsof, and Dave Pietraszewski explore what actually constitutes a group, distinguishing between spatiotemporal clusters from primatology, identity groups, and labels used to scaffold cooperation. They discuss how different definitions of groups often get conflated in behavioral sciences and anthropology.
↗ 5:49 – 12:02Dave Pietraszewski, David Pinsof, and guest Anne Pisor discuss the complexities of group identities, contrasting human susceptibility to group labels with individual agency and entrepreneurial coordination. They examine how groups function in social science frameworks and the challenges of measuring individual psychology versus group dynamics.
↗ 12:02 – 15:35Anne Pisor describes her anthropological fieldwork in the Bolivian Amazon, explaining how her initial assumptions about groups as containers for cooperation evolved. Pisor and the hosts discuss how people navigate ethnic boundaries, distance-based needs, and economic experiments to understand when groups actually shape cooperation.
↗ 15:36 – 24:02Host Dave Pietraszewski, David Pinsof, and guest Anne Pisor discuss methodological approaches using photographs in cross-cultural research across evolutionary anthropology. Anne Pisor shares her fieldwork in Bolivia studying three indigenous groups—the Mosetenes, Interculturales, and Chimane—using economic games to examine how out-group cooperation relates to market participation and perceptions of discrimination.
↗ 24:02 – 29:24Host Dave Pietraszewski and guest Anne Pisor discuss how humans manage ecological risks like droughts and resource scarcity through long-distance exchange networks and social relationships, noting parallels in ethnographic accounts such as San hxaro exchange and the Kula ring.
↗ 36:05 – 39:11The hosts and Anne Pisor explore whether resource competition encompasses social status and political power, discussing evolutionary fitness proxies, ancestral environments, and the salient attractors that trigger human groupishness and perceptions of value.
↗ 54:22 – 1:00:10The hosts and guest discuss how resources such as land, food, and political power are categorized, exploring whether they are inherently zero-sum or shaped by social context, collaboration, and shared interests.
↗ 1:00:11 – 1:08:24The speakers examine jobs as modern resources, discussing the contrast between economic models of labor and the human tendency to view jobs as zero-sum, alongside household risk diversification strategies.
↗ 1:08:25 – 1:12:13The hosts and Anne Pisor examine the role of inequality in intergroup relations and parochial altruism. They discuss how shrinking power distances between groups can escalate intergroup tensions and conflict, comparing human social dynamics with non-human primate behavior.
↗ 1:17:30 – 1:24:13Dave Pietraszewski, David Pinsof, and guest Anne Pisor discuss conflict escalation models in animals and humans, comparing physical threat assessment with group size dynamics and norm coordination. Drawing on fieldwork in Peru, Pisor explains how numeric majorities and minority groups interact at cultural boundaries, influencing norm persistence and cultural stability.
↗ 1:24:13 – 1:28:41The speakers examine intergenerational differences in adopting new trades, languages, and norms, highlighting how young people drive cultural change due to lower sunk costs and flexibility. They discuss how cultural shifts function as zero-sum status games with distinct winners and losers, shedding light on intergenerational friction and contemporary culture wars.
↗ 1:28:41 – 1:36:14Guest Anne Pisor discusses her academic background with hosts Dave Pietraszewski and David Pinsof, explaining how she transitioned from undergraduate studies in psychology and anthropology into evolutionary behavioral sciences and fieldwork in the Amazon. She also shares how her field experiences led her to combine basic science with applied work on climate change and natural resource management.
↗ 1:36:15 – 1:41:29The hosts and guest Anne Pisor discuss balancing academic and industry roles, the value of academic publishing for driving intellectual progress compared to other formats like blogging, and concluding thoughts on their engaging conversation about evolutionary behavioral sciences and ongoing research connections.
↗ 1:41:31 – 1:46:51Hosts Dave Pietraszewski and David Pinsof introduce guest Bret Beheim from the Max Planck Institute for Evolutionary Anthropology in Leipzig. They discuss the concept of network-based diffusion analysis, examining how measurable cultural traits, behaviors, and technologies spread through human and animal populations over time.
↗ 0:00 – 7:09The speakers discuss how cultural traits and technologies both rise and fall, contrasting multi-generational cultural shifts with rapid modern technological adoptions like smartphones and LLMs. Bret Beheim shares a historical artifact of early smartphone technology to illustrate how quickly revolutionary user interfaces became ubiquitous.
↗ 7:09 – 12:06Dave Pietraszewski, David Pinsof, and guest Bret Beheim discuss how mathematical models can be applied across vastly different scientific domains, comparing the diffusion of heat, genes, and cultural practices to demonstrate the unifying power of quantitative reasoning in evolutionary behavioral sciences.
↗ 12:06 – 15:18Bret Beheim explains the historical intersection of Darwinian evolution and Mendelian inheritance, detailing how mathematical population models allow scientists to isolate specific forces like selection, migration, drift, and mutation to study distributions of traits over time.
↗ 15:19 – 24:07Host Dave Pietraszewski, David Pinsof, and guest Bret Beheim discuss the concept of cultural distance in cultural evolution, examining how researchers attempt to quantify similarities and differences between norms or societies using datasets like the World Values Survey and connecting these measures to biological distance metrics.
↗ 24:07 – 28:22The speakers explore how cultural distance predicts behavior in economic games and vignette studies, such as willingness to cooperate or help outgroup members. They contrast altruistic scenarios where cultural distance acts as a barrier with trade scenarios where diverse skill sets and comparative advantages create opportunities for mutually beneficial exchange.
↗ 28:23 – 36:08Dave Pietraszewski, David Pinsof, and guest Bret Beheim discuss how experimental psychology and anthropological fieldwork complement each other. While psychologists control variables in lab settings to study the mind, anthropologists and formal theorists provide quantitative frameworks and data on real-world behavior, helping researchers navigate infinite observational possibilities and refine theoretical models.
↗ 36:08 – 40:22The speakers examine how humans navigate uncertainty, resource scarcity, and cultural distance in cooperative exchanges. Bret Beheim and David Pinsof discuss whether altruism toward outgroups is constrained by the difficulty of estimating long-term payoffs, and how individuals acquire preferences and learn the rules of social and economic interactions through cultural exposure.
↗ 40:22 – 48:08Dave Pietraszewski, David Pinsof, and Bret Beheim discuss how evolved psychologies interact with cultural traits like shared sports teams to influence cooperation. They examine the methodological challenges of measuring cultural distance across various domains, comparing unidimensional metrics to biological analogies such as whale classification.
↗ 48:08 – 53:39Bret Beheim and the hosts explore the concept of FST as applied to both genetics and culture, noting that humans show remarkably low genetic differentiation alongside high cultural variability, leading to the description that genes are smooth while culture is crunchy.
↗ 53:40 – 1:00:10Bret Beheim discusses his undergraduate experiences at UC Santa Barbara, where he studied under figures like Don Simons and John Tooby, before pursuing graduate studies at UC Davis focusing on cultural evolution and modeling.
↗ 1:00:10 – 1:04:14The speakers examine the historical relationship and perceived division between evolutionary psychology and cultural evolution, noting how both fields have increasingly overlapped while discussing the impact of WEIRD samples in psychological research.
↗ 1:04:15 – 1:12:13Dave Pietraszewski, David Pinsof, and guest Bret Beheim examine the limitations of sample diversity critiques and introduce the evolutionary psychology concept known as the jukebox model. Originally proposed by Barkow, Cosmides, and Tooby, the metaphor illustrates how geographic variation in behavior can emerge from environmental triggers rather than cultural transmission, representing what is known as evoked culture.
↗ 1:12:14 – 1:18:55The speakers explore coordination equilibria and economic analogies like Hayekian market prices to understand social influence without direct cultural transmission. They contrast purely ecological or rational responses with emergent social outcomes, considering whether phenomena like traffic rules, market prices, or strict rule-following behaviors should be classified as culture.
↗ 1:18:55 – 1:24:15Dave Pietraszewski, David Pinsof, and guest Bret Beheim discuss whether pedestrian and driving behaviors, such as waiting at red lights, are driven by internalized social norms or rational cost-benefit calculations. They compare cross-cultural differences in traffic rules, policing environments, and coordination failures across cities like Berlin, Los Angeles, and Connecticut.
↗ 1:24:16 – 1:31:58David Pinsof proposes a controversial view that most culture is not vertically transmitted values, but rather an emergent Hayekian outcome of individuals pursuing self-interest and local goals. Bret Beheim responds by discussing cultural evolution models, arguing that norm psychology acts as a cognitive shortcut to reduce the heavy costs of constant attention and calculation.
↗ 1:31:59 – 1:36:22Dave Pietraszewski, David Pinsof, and guest Bret Beheim discuss how cultural learning, economic games, and norm adherence interact with cost-benefit calculations. The speakers explore whether following social norms is driven purely by transmitted cultural rules or by rational individual cost-benefit analyses, touching upon evolved norm psychology and social coordination equilibria.
↗ 1:36:22 – 1:40:26The speakers analyze a famous economic study from an Israeli daycare where introducing a financial fine for late pickups paradoxically increased tardiness. They discuss how monetary penalties shift social interactions into commercial exchanges and examine how impression management, reputational costs, and internal audience simulation shape human prosocial behavior and norm compliance.
↗ 1:40:27 – 1:48:23Dave Pietraszewski, David Pinsof, and guest Bret Beheim discuss how cost-benefit analyses, social costs, and cultural transmission intersect. Beheim explains how cognitive heuristics might evolve to help individuals learn local behavioral coordination and social sanctions, and the hosts discuss wrapping up the interview.
↗ 1:48:23 – 1:51:34Bret Beheim describes his work at the Max Planck Institute for Evolutionary Anthropology in Leipzig, detailing their focus on human behavior, ecology, culture, and longitudinal field data like the Chimani Project. The speakers then explore the cultural evolution of games such as Go, artificial intelligence breakthroughs, and the psychology of status games.
↗ 1:51:35 – 2:00:25Bret Beheim discusses with the hosts how negative frequency dependence operates in strategic games like chess, poker, and Go, where players avoid popular moves to remain unpredictable. They also explore how such strategic interactions shape broader evolutionary dynamics and touch upon high-stakes match controversies.
↗ 2:00:25 – 2:02:47The hosts and Bret Beheim conclude the episode, thanking him for his appearance, promoting his research projects, and exchanging farewells. Afterward, the hosts engage in a lighthearted banter about leaving podcast reviews and supporting shows on Patreon.
↗ 2:02:48 – 2:04:29Hosts Dave Pietraszewski and David Pinsof introduce the podcast and preview their guest, Dr. Zach Garfield, an expert on leadership, followership, and cultural variation. The hosts discuss how evolutionary approaches can reframe everyday concepts like following the leader, leading into Garfield's academic background and previous work at the Institute for Advanced Study in Toulouse.
↗ 0:00 – 4:34Zach Garfield joins the conversation to discuss how food sharing, feasting, and the generation of resource surpluses contribute to social status and leadership. The speakers explore the balance between benefit-generating pro-social strategies and coercion or fear-based dominance, noting that ecological constraints and outside options heavily influence leadership dynamics across different human societies.
↗ 4:34 – 12:03Dave Pietraszewski, David Pinsof, and guest Zach Garfield discuss the cultural evolution of leadership, exploring how economic control in subsistence societies transitions into coercive, hereditary chiefdoms and state-level societies. They analyze leadership through a market-like lens, where leaders act as monopolies providing coordinated services such as defense, mediation, and religion while suppressing potential competitors.
↗ 12:03 – 19:19Zach Garfield details his research on status hierarchies, punishment, conflict resolution, and social learning, explaining how leadership underpins these downstream behavioral phenomena. He and the hosts discuss the Omo Valley Research Project in southwest Ethiopia, highlighting how agro-pastoralist communities and ongoing socioeconomic transitions provide critical insights into human behavior and market integration.
↗ 19:19 – 24:06Host Dave Pietraszewski and guest Zach Garfield discuss the cultural and linguistic diversity of southwestern Ethiopia, examining how the region's unique history and subsistence-based societies offer rare opportunities for anthropological research. They contrast day-to-day life and social institutions in these communities with modern market-integrated environments.
↗ 24:06 – 28:58David Pinsof, Dave Pietraszewski, and Zach Garfield explore how market integration alters human psychology, language, and the perception of time. They discuss how punctuality and scheduled time emerge from market economies and how individuals strategically adapt to new cultural norms based on self-interest.
↗ 28:58 – 36:10Guest Zach Garfield and hosts discuss how young individuals in pastoralist communities evaluate economic strategies, weighing the long-term benefits of traditional lifestyles against market-based opportunities. Garfield explains that pastoralism often pays off in later life through accumulated wealth and retirement, which reinforces cultural traditions, though environmental pressures and changing incentives can create family conflict.
↗ 36:10 – 43:46The speakers examine family tensions arising when children deviate from traditional expectations to pursue market strategies or education. They then transition into discussing the anthropological and evolutionary science of leadership, contrasting Western business school archetypes with broader, more diverse forms of leadership studied in small-scale societies.
↗ 43:47 – 48:11Zach Garfield describes the extensive empirical fieldwork and data collection methods he and his collaborators undertake in the Omo Valley Research Project. He details how their team of international researchers and local anthropologists utilizes custom-built software applications to systematically gather diverse social network and ethnographic data.
↗ 1:34:18 – 1:36:16Guest Zach Garfield discusses with hosts Dave Pietraszewski and David Pinsof how his research team maps cross-cultural friendships and social networks across rural villages and ethnic groups. Garfield also explains the philanthropic branch of their organization, which funds higher education and living expenses for motivated students from these communities.
↗ 1:36:16 – 1:43:28Hosts Dave Pietraszewski and David Pinsof introduce the podcast, discuss their comedic use of parentheses and scare quotes, and introduce guest Dr. Brooke Scelza, a biological anthropologist from UCLA who studies the Himba pastoralists in Namibia, setting up a broader discussion on mating, jealousy, parental investment, and the replication crisis in evolutionary social sciences.
↗ 0:00 – 3:18Guest Brooke Scelza discusses her research with the Himba people in Namibia, explaining how she initially went to study cooperative breeding but discovered widespread patterns of concurrent formal and informal sexual partnerships. Scelza and the hosts explore how studying a population at the opposite end of the typical Western spectrum helps avoid essentializing and highlights flexibility in mating systems.
↗ 3:24 – 8:10Brooke Scelza describes how modernization, droughts, and the introduction of cell phones and store-bought goods have altered Himba society over 15 years. The conversation examines double descent and matrilateral inheritance, where wealth flows from mother's brother to sister's son, illustrating how reproductive strategies and paternity uncertainty are deeply tied to intergenerational resource flows.
↗ 8:10 – 12:02Host Dave Pietraszewski and guest Brooke Scelza discuss how shifts toward a cash economy may impact women's autonomy and paternity certainty. Scelza explains that despite high rates of extra-pair paternity in the studied community, men still maintain strong social norms and behavioral patterns of paternal investment toward children regardless of biological relatedness.
↗ 12:02 – 17:27Dave Pietraszewski, David Pinsof, and guest Brooke Scelza discuss how pastoralist societies manage paternity uncertainty, spousal separation, and norms around treating children equally. They examine how resource transfers, cash, and covert gifts operate between marital partners and extramarital boyfriends within these complex cultural systems.
↗ 24:05 – 31:02Brooke Scelza describes vignette experiments investigating how participants allocate resources across various family categories based on paternity and relationship type. The hosts and guest explore why generosity matters for boyfriends, how men gain social cachet, and how indirect reciprocity supports cooperative norms across the community.
↗ 31:02 – 36:06Guest Brooke Scelza discusses with hosts Dave Pietraszewski and David Pinsof her cross-cultural research on jealousy regarding sexual versus emotional infidelity. While testing populations such as the Himba, Chimane, and Hadza, they found that variation in the severity of jealousy responses was heavily driven by levels of paternal investment rather than universal sex differences alone.
↗ 48:12 – 53:11The speakers discuss the broader theoretical implications of studying behavioral variation rather than solely focusing on universal sex differences. They examine how cultural systems reinforce evolutionary logic, noting that flexible cost-benefit calibrations, such as investment-dependent jealousy, represent sophisticated evolved design rather than being antithetical to evolutionary theory.
↗ 53:11 – 1:00:12Dave Pietraszewski, David Pinsof, and guest Brooke Scelza discuss how human behavioral ecology keeps psychological research grounded by examining ecological constraints, foraging costs, and real-world adaptive problems rather than relying solely on counterintuitive findings. They explore the integration of cultural evolution, norms, and behavioral ecology across academic traditions.
↗ 1:00:12 – 1:05:33The speakers examine whether evolutionary psychologists are successfully integrating perspectives from behavioral ecology and cultural evolution, or if fields remain siloed. They emphasize the necessity of cross-cultural anthropology to test assumptions about universal human psychology and avoid biases stemming from Western populations.
↗ 1:05:35 – 1:12:13Dave Pietraszewski, David Pinsof, and guest Brooke Scelza discuss the limitations of traditional cross-cultural psychology research, arguing against using other cultures merely as a cudgel to prove universals. Instead, they emphasize understanding human behavioral flexibility, moving past false dichotomies, and integrating behavioral ecology with evolutionary psychology to study how minds adapt to diverse contexts.
↗ 1:12:13 – 1:18:06Brooke Scelza, Dave Pietraszewski, and David Pinsof examine how fieldwork in anthropology humbles researchers by challenging preconceived notions. They discuss the current state of human behavioral ecology, the challenges of differing academic incentive structures, and the importance of fostering ongoing interdisciplinary conversations between psychologists and anthropologists.
↗ 1:18:07 – 1:24:15Host Dave Pietraszewski and guest Brooke Scelza discuss the differences in field size and integration between human behavioral ecology and evolutionary psychology. They examine how the public's fascination with sex and dating leads to oversimplified pop psychology interpretations, and the challenges educators face when students apply these folk theories to personal relationships.
↗ 1:24:15 – 1:28:30The speakers discuss the manosphere, mating market struggles, and how young people encounter distorted evolutionary claims online. Brooke Scelza argues that scientists have a responsibility to actively correct misinterpretations of their research—such as misunderstandings around cuckoldry—rather than blaming the public for oversimplifying complex data.
↗ 1:28:30 – 1:36:18The hosts and Brooke Scelza examine how women's social influence is often intentionally concealed behind the scenes in political and decision-making contexts. They discuss the methodological challenges this poses for researchers and evaluate adaptationist expectations regarding women navigating restrictive social environments.
↗ 1:39:53 – 1:48:18In the outro, the hosts Dave Pietraszewski and David Pinsof thank listeners, encourage them to leave podcast reviews and support the show on Patreon, and humorously request a fanny pack for David.
↗ 1:50:00 – 1:51:17David Pinsof and Hannes Rusch transition from discussing exploitation to examining group memberships and the in-group out-group literature. Rusch describes his replication and longitudinal extension of experimental paradigms measuring individual differences in groupy behavior and group markers.
↗ 1:00:17 – 1:06:07Hannes Rusch explains his surprising finding that in-group favoritism is extremely unstable within individuals over time across repeated measurements in both minimal and natural group contexts, prompting a discussion about stability, meaning, and future research.
↗ 1:06:07 – 1:12:17Hannes Rusch shares how he discovered evolutionary theory through philosophy, eventually transitioning into economics where evolutionary perspectives are less central compared to social norms and institutions. The hosts and guest discuss levels of analysis, bridging individual cognitive architecture with population-level cultural evolution.
↗ 1:42:46 – 1:48:27The hosts express their appreciation for Hannes Rusch's rigorous research and contributions to the evolutionary psychology community. They highlight opportunities at the Max Planck Society, plug upcoming group leader positions, and conclude with standard podcast outro announcements.
↗ 1:53:07 – 1:56:56Dave Pietraszewski, David Pinsof, and guest Cari Goetz discuss how romantic relationships are subject to cultural norms, religion, legal constraints, and idealistic 'love propaganda' that make breakups uniquely difficult compared to other partnerships. They explore the evolutionary perspective on relationship duration and the mismatch between modern legal/social expectations and human psychology.
↗ 36:03 – 40:23Dave Pietraszewski and David Pinsof discuss ways listeners can support the podcast, share episodes on social media, and provide suggestions for future guests and episode ideas to keep the show running.
↗ 1:48:21 – 1:48:58The hosts jokingly imagine interviewing an AI simulation of Charles Darwin, discuss a George Carlin AI stand-up comedy special, and chat about AI doomism and Hollywood movie tropes.
↗ 1:48:58 – 1:50:38The speakers examine confabulation and why people accept justifications for behavior despite potential biases. They explore epistemic vigilance, reputational costs, and instances of cooperative bullshitting in cultural and political groups, such as attributing misfortunes to supernatural causes.
↗ 13:52 – 24:06Dave Pietraszewski, David Pinsof, and Hugo Mercier discuss the disconnect between underlying behavioral drivers and verbal confabulations. They examine how people utilize vague, unfalsifiable, or socially convenient justifications to support their actions, and how these narratives persist when they lack rigorous critical pushback from outsiders.
↗ 36:08 – 45:53Hugo Mercier and David Pinsof discuss how reflective beliefs can function as social signals rather than genuine intuitive convictions. Pinsof suggests that common inferences drawn from actions create social incentives for signaling, comparing certain beliefs to pseudoscience. Mercier responds that while signaling explains widespread cultural spread, initial beliefs still must meet a minimum threshold of plausibility and epistemic vigilance.
↗ 1:12:16 – 1:19:44In the concluding segment, the hosts and Hugo Mercier explore the proportion of human verbally articulated beliefs that are intuitive versus reflective. Mercier estimates that the overwhelming majority of durable cultural and scientific beliefs are reflective rather than intuitive, noting the trade-offs between local personal relevance and widespread cultural information.
↗ 1:30:36 – 1:36:22Hosts Dave Pietraszewski and David Pinsof thank guest Hugo Mercier for his time in the evening, and then transition into closing housekeeping. They discuss listener reviews, supporting the show on Patreon, everyday tasks listeners can do with their extra time, and banter about leftover podcast merchandise such as fanny packs and stickers.
↗ 1:36:23 – 1:37:49Hosts Dave Pietraszewski and David Pinsof introduce guest Sarah Matthew, a professor at Arizona State University. The discussion explores the unique interdisciplinary environment of ASU's School of Human Evolution and Social Change, highlighting how institutional structures encourage freedom and collaboration across diverse fields without rigid departmental constraints.
↗ 0:00 – 7:48Sarah Matthew discusses specific interdisciplinary projects enabled by her academic environment, including combining cultural evolutionary approaches with genetic population structures among the Turkana. She also describes collaborating with legal scholars on normativity and artificial intelligence, showcasing how flexible institutional settings foster innovative cross-disciplinary partnerships.
↗ 7:48 – 12:04Host Dave Pietraszewski and guest Sarah Mathew discuss anthropological fieldwork among the Turkana people, examining how they consume meat from animals dying of disease without getting sick. They explore whether this resilience stems from cultural knowledge or physiological adaptations, highlighting pastoralist practices and the importance of social learning in human survival across harsh environments.
↗ 12:04 – 21:14The hosts and Sarah Mathew continue their discussion by considering thought experiments about human survival in unfamiliar environments. They reflect on whether individual reasoning alone is sufficient to thrive in extreme habitats like deserts or the Arctic, concluding that accumulated cultural transmission is essential rather than relying on innate personal capability.
↗ 21:14 – 24:07Sarah Mathew, Dave Pietraszewski, and David Pinsof discuss evolved psychological predispositions for social learning, contrasting older models with modern perspectives from artificial intelligence and cognitive science on how mental structures and modularity develop with minimal genetic priors.
↗ 24:07 – 34:09The speakers distinguish between a highly modular phenotypic outcome and the minimalistic genetic and developmental processes that produce it, connecting these ideas to debates in developmental psychology and Sarah Mathew's entry into the field of cultural evolution.
↗ 34:09 – 36:12Guest Sarah Mathew discusses with hosts Dave Pietraszewski and David Pinsof her transition from studying ants to human evolutionary biology. Inspired by cultural evolution frameworks, she highlights how human cooperation stands out in the animal kingdom, noting its immense scale, flexibility, and intensity at both large and small scales compared to other social species.
↗ 36:12 – 41:30Sarah Mathew illustrates small-scale human cooperation using field observations from Turkana, where individuals maintain distant friendships and mutual investments. The speakers explore the paradox of humans achieving massive cooperative feats while remaining largely self-interested, contrasting human egalitarian norms with insect eusociality and hierarchical animal systems.
↗ 41:30 – 48:13Host Dave Pietraszewski, David Pinsof, and guest Sarah Mathew discuss human cooperation, contrasting it with other species through human reliance on culture and imitation. Mathew explains group structured cultural selection, detailing a genetic and cultural study of pastoral groups in Northwest Kenya, which revealed low genetic variation between groups but significantly higher cultural variation.
↗ 48:14 – 54:13Sarah Mathew and the hosts explore how cultural group selection shapes norms around raiding and cooperation among the Turkana people in Kenya. They discuss how norms establish in-group boundaries across a large population while intergroup warfare persists due to classic collective action problems and the breakdown of cooperation across ethnic borders.
↗ 54:13 – 1:00:19Dave Pietraszewski, David Pinsof, and Sarah Mathew discuss how social norms serve as coordination solutions that manage common knowledge and allow humans to achieve high levels of cooperation despite being fundamentally self-interested. They examine cultural group selection, ecological resource extraction, and how normative packages spread through competition.
↗ 1:00:19 – 1:08:01The hosts and guest explore whether human tribalism and intergroup animosity should be viewed as cultural adaptations rather than purely genetic ones. They discuss how cultural practices that extract resources and defend groups proliferate, while noting that gene-culture coevolution remains an empirical question.
↗ 1:08:01 – 1:12:22Dave Pietraszewski, David Pinsof, and Sarah Mathew discuss how cultural norms interact with evolved human psychology during intergroup conflicts. They explore whether humans are predisposed to learn specific tribal norms, how cultural packages leverage partner-choice psychology to demonize outgroups, and empirical findings on ethnic essentialism among the Turkana and Toposa groups.
↗ 1:12:22 – 1:22:13Sarah Mathew discusses how PTSD symptoms split into universal physical danger responses, such as hypervigilance and startle seen cross-culturally in groups like the Turkana, and depressive symptoms linked to motivational changes. The speakers explore how navigating complex social norms and moral violations during war shapes these motivational and psychological outcomes.
↗ 1:24:27 – 1:32:18Sarah Mathew and the hosts examine differences in depressive symptom severity between US soldiers and Turkana warriors, connecting them to moral violations and social sanctions. They conclude that the elaborate cultural norms and rituals surrounding warfare highlight the crucial role of cultural adaptation alongside evolved human psychology.
↗ 1:32:18 – 1:36:34Dave Pietraszewski, David Pinsof, and Sarah Mathew discuss how norms govern warfare and how genetically evolved psychological mechanisms make humans vigilant about norm violations. They examine the various moral events and violations experienced by the Turkana, such as abandoning injured comrades, failing to share resources, or facing blame from families when a companion dies on a raid, and how these relate to depressive symptoms.
↗ 1:36:34 – 1:43:31The hosts and Sarah Mathew explore whether individuals anticipate social disapproval or rely on community reactions as a moral compass. Mathew shares surprising findings regarding combat killing among the Turkana: despite strong cultural institutions and permanent bodily scar markers rewarding warriors, individuals who killed in combat reported higher depressive symptom severity and experiences of feeling haunted.
↗ 1:43:31 – 1:48:37The speakers discuss the psychological challenges and moral violations of killing in warfare, examining how cultural mechanisms and institutions help groups overcome a natural aversion to violence. They contrast different cultural approaches to conflict, such as those of the Turkana versus modern nation-states, and consider how changing institutional rules and incentives might reduce war and intergroup hostility.
↗ 1:48:37 – 1:57:04As the episode concludes, the hosts thank guest Sarah Mathew for her invaluable empirical and theoretical fieldwork with the Turkana. They reflect on broader paradigm shifts regarding human nature, discussing how social norms, fairness, and egalitarianism operate as sophisticated mechanisms for coordinating self-interest and maintaining cooperative groups.
↗ 1:57:05 – 2:00:39Dan Nettle discusses his research philosophy, explaining how he attempts to combine evolutionary psychology with macro-level social science questions. He argues that traditional evolutionary psychology often focuses on simple problems while ignoring complex social, cultural, and economic structures, and he highlights his work on topics like income inequality and crime.
↗ 4:23 – 12:03Dave Pietraszewski, David Pinsof, and guest Dan Nettle discuss how individual psychological mechanisms feed into macroscopic social patterns. They examine whether the concept of "reverse engineering" applies appropriately to human minds versus large-scale social institutions, contrasting design logic with emergent path-dependent processes like inflation and legal systems.
↗ 12:03 – 22:11David Pinsof asks Dan Nettle about cultural group selection approaches and whether institutions like monogamy, religion, and subsistence tools can be understood through a design stance. Nettle responds that while cultural processes certainly yield functional outcomes or maladaptive traps, the underlying mechanism is driven by purposive agents seeking alternatives rather than classic genetic natural selection.
↗ 22:11 – 24:03Dave Pietraszewski, David Pinsof, and Dan Nettle discuss the relationship between cultural institutions and individual human agency. They examine how societal rules can cause people to opt out or rebel, how power asymmetries and conflicting Darwinian interests shape human behavior, and why evolutionary psychology provides robust tools for understanding conflict.
↗ 24:03 – 30:14In this excerpt from "Evolutionary Social Sciences with Dan Nettle," the host Dave Pietraszewski and guest Dan Nettle discuss how strategic self-interest, fear of being labeled a hypocrite, and risk aversion drive adherence to social norms. They argue that the internalization of social systems is often overstated, and cultural practices persist because individuals prefer predictable status quos over risky alternatives.
↗ 36:06 – 43:00The speakers examine the concept of coordination, referencing Thomas Schelling's work on focal points. Dan Nettle, David Pinsof, and Dave Pietraszewski explain that people often coordinate on suboptimal equilibria because navigating uncertainty is difficult and establishing mutual predictability is more practical than attempting to discover ideal alternatives.
↗ 43:00 – 48:11Dave Pietraszewski, David Pinsof, and guest Dan Nettle discuss how evolutionary psychology is moving past simple folk psychology and populist intuitions toward more nuanced, complex models of the mind. They examine parallels with anthropology's non-judgmental approach and critique the coherence of the so-called standard social science model as a rhetorical foil.
↗ 1:24:17 – 1:30:16Hosts Dave Pietraszewski and David Pinsof introduce the podcast and guest Léo Fitouchi from the Institute for Advanced Study in Toulouse. They discuss the interdisciplinary nature of the institute, bringing together anthropologists, psychologists, and economists within an evolutionary framework.
↗ 0:01 – 5:03The hosts and Léo Fitouchi explore the large cross-cultural variation in moralizing bodily pleasures and self-control. They discuss why certain societies are more puritanical than others, debating whether economic development, baseline impulsivity, or contextual threats shape the stringency of these moral norms across different populations.
↗ 28:20 – 36:10The speakers examine a hypothesis about elite art consumption as a costly signal of self-control and competence. Guest Léo Fitouchi and the hosts discuss whether preferences for highbrow culture signal trustworthiness or competence, and how socioeconomic class, future discounting, and perceptions of status intersect.
↗ 1:27:16 – 1:36:18Hosts Dave Pietraszewski and David Pinsof discuss class dynamics, elite perspectives, and populism before interviewing guest Léo Fitouchi about his current work. Fitouchi explains his shift toward studying the moral psychology of authority and reciprocity rather than dominance.
↗ 1:36:18 – 1:41:07In this closing segment of the podcast, hosts Dave Pietraszewski and David Pinsof casually discuss organic French fries, joking about receiving them through the mail. They humorously offer a guarantee to invite anyone onto the show who manages to successfully deliver homemade French fries to them, before concluding the episode and bidding listeners farewell until next week.
↗ 1:48:18 – 1:49:21David Pinsoff connects the free will debate to Donald Brown's list of human universals, highlighting concepts like intention, choice making, and self-control that appear across cultures and suggest a cognitive foundation for human agency.
↗ 9:53 – 12:01The hosts explore how advertising and scientific institutions are incentivized to exaggerate their ability to manipulate human behavior using priming or hidden techniques, mirroring popular anxieties about free will and control.
↗ 1:46:40 – 1:48:26Hosts Dave Pietraszewski and David Pinsof introduce guest Luke Glowacki, discussing his academic lineage connected to Jane Goodall and Richard Wrangham, his training in biological anthropology at Harvard, and his current position in the anthropology department at Boston University.
↗ 0:00 – 5:43Luke Glowacki describes his journey from studying philosophy to discovering evolutionary behavioral sciences through a critic's book. The conversation then transitions to his recent paper, 'The Evolution of Peace,' exploring how culture bridges the gap between evolutionary biology and psychological processes in intergroup conflict and cooperation.
↗ 5:43 – 12:00Guest Luke Glowacki shares fieldwork observations among the Nyangatom in East Africa, leading to the insight that because war can easily offer tangible benefits like resources and status, the harder theoretical question is understanding how groups successfully stop fighting and establish peace.
↗ 42:57 – 48:09David Pinsof and Luke Glowacki explore the disconnect between evolved human psychology designed for low-cost, small-scale raids and the large-scale warfare seen in civilization with formal armies and states. They draw an analogy between large-scale warfare and large-scale peace treaties or international diplomacy, prompting a discussion about whether analogous mechanisms exist at the small scale.
↗ 58:47 – 1:00:11Dave Pietraszewski, David Pinsof, and guest Luke Glowacki discuss the evolutionary and cultural challenges of maintaining peace between groups, focusing on how small-scale societies struggle with individual rogue actors reinitiating cycles of violence and the difficulty of enforcing group-level norms without centralized institutions.
↗ 1:00:11 – 1:07:34The speakers examine why people often attribute collective blame to out-groups and how modern societies differ from decentralized tribal groups in their ability to coordinate, dehomogenize groups, and extend moral boundaries beyond immediate kin and in-group members.
↗ 1:07:34 – 1:12:12Dave Pietraszewski, David Pinsof, and guest Luke Glowacki discuss the internal tensions within societies regarding peace versus conflict. They examine how future-oriented versus present-oriented members view raiding, and how communities use norms, leadership censure, ritual specialists, and even physical intervention to align incentives and deter young men from breaking peace agreements.
↗ 1:12:12 – 1:14:56David Pinsof and Luke Glowacki debate whether moralization, dehumanization, and narratives play a necessary causal role in intergroup violence or if they are merely epiphenomenal. Pinsof argues that moral justifications and narrative framing are necessary to manage reputational costs and coordinate collective action among humans, whereas Glowacki highlights ethnographic examples of bounded moral universes where violence occurs without elaborate pretexts.
↗ 1:14:57 – 1:24:13Dave Pietraszewski, David Pinsof, and guest Luke Glowacki discuss how evolved psychology handles ingroup cooperation and outgroup hostility, contrasting small-scale societies with modern social environments where promiscuous moral inferences about character are more common due to large networks and abundant social options.
↗ 1:24:13 – 1:30:39The speakers examine the definition and mechanics of intergroup peace, noting that establishing peace requires overcoming collective action problems, enforcing norms against outliers, and building centralization. Luke Glowacki explains that intergroup peace unlocks positive-sum relationships that fuel cumulative cultural evolution, while also carrying the potential for scaled-up conflict.
↗ 1:30:40 – 1:36:15Guest Luke Glowacki discusses with hosts Dave Pietraszewski and David Pinsof how peace acts as a cultural technology invented to solve coordination problems. They explore evolutionary psychology, the enforcement of peace through executing rule-breakers, power imbalances, and the ethnography of patron-client relationships among small-scale societies.
↗ 1:36:15 – 1:44:07The hosts and guest Luke Glowacki discuss his ongoing work with Zach Garfield on the Omo Valley Research Project, highlighting educational support, scholarships, and digital skills workshops provided to students in pastoralist communities in Ethiopia.
↗ 1:44:08 – 1:48:17Guest Luke Glowacki chats with hosts Dave Pietraszewski and David Pinsof about his current book manuscript on war and peace. Glowacki explains how his perspective has evolved from a behavioral ecological approach to examining cultural mechanisms of warfare, including the cultural significance of the working title "Enemy Eaters" among tribal societies.
↗ 1:48:18 – 1:50:36Hosts Dave Pietraszewski and David Pinsof wrap up the episode by discussing ways listeners can support the show, including leaving reviews, interacting on social media, and contributing on Patreon to potentially fund episode editing.
↗ 1:50:39 – 1:52:32Michael Graziano unpacks why researchers often fail in studying consciousness due to hidden psychological motivations, such as a desire for spiritual mystery or a fear of technology. The conversation traces the historical evolution of consciousness scholarship from William James to Alan Turing, highlighting how computational advances challenged traditional views of mental contents.
↗ 8:17 – 12:01Hosts Dave Pietraszewski and David Pinsoff wrap up the episode discussing listener consciousness, encouraging audience support through Patreon and social media, and joking about fashion choices regarding fanny packs.
↗ 2:06:37 – 2:08:36Paul Smaldino discusses the functional role of identity from an evolutionary and cultural perspective, explaining how human identity acts as a social category used for adaptive decision-making, cooperation, and strategic interaction.
↗ 3:34 – 12:03Paul Smaldino discusses the anthropological and sociological history of identity markers, explaining how individuals signal their identity through fashion, language, and behavior to navigate group affiliations. Host Dave Pietraszewski and David Pinsof join in with a lighthearted comparison between human urban commuting and chimpanzee social behavior.
↗ 24:10 – 27:36Paul Smaldino elaborates on covert signaling and pragmatics, explaining how humans use ambiguous language, humor, and subtext to signal their identities selectively in diverse societies without risking backlash. He then describes how researchers translate these verbal theories into formal mathematical models to test predictions.
↗ 27:37 – 36:11Paul Smaldino discusses with Dave Pietraszewski and David Pinsof how mathematical models and artificial populations are constructed to study overt and covert signaling between similar and dissimilar individuals. Smaldino explains the trade-offs in communication fidelity, how assumptions can be tested or extended, and the benefits of agent-based modeling for investigating complex social interactions.
↗ 36:12 – 41:40Paul Smaldino explains how successful covert signals eventually become recognized by out-groups, leading to a natural lifespan for signals like dog whistles. Smaldino, Dave Pietraszewski, and David Pinsof examine how Twitter data and behavioral experiments around political polarization helped validate these theoretical and computational models.
↗ 41:40 – 48:12Host Dave Pietraszewski, David Pinsof, and guest Paul Smaldino discuss how political actors use overt versus covert signals on Twitter depending on audience composition. Smaldino explains observational findings from follower networks and describes a behavioral experiment where participants selected tweets for audiences with varying political distributions.
↗ 48:12 – 57:33The speakers explore theoretical extensions regarding overt messaging as a costly signal of political loyalty that burns bridges with moderates. Smaldino connects these insights back to his modeling and the noticeable surge in extreme political movements around 2015 and 2016.
↗ 57:34 – 1:00:17Host Dave Pietraszewski, David Pinsof, and guest Paul Smaldino discuss how the internet and political shifts embolden individuals to move from covert to overt signaling. They explore perceptions of group formidability, why minority or low-status dissidents take high-risk actions when they have nothing to lose, and examples like punk rockers in East Germany and outlaw groups.
↗ 1:00:17 – 1:09:17The hosts transition to discussing Paul Smaldino's work on meta-science, specifically the natural selection of bad science with Richard McElreath. They highlight how social systems and selection pressures often produce unintended consequences that diverge entirely from individual intentions, emphasizing the necessity of formal modeling over naive individual-level analyses.
↗ 1:09:18 – 1:12:17Paul Smaldino discusses with the hosts how scientific fields fail to naturally select for better methods and truth over time, drawing parallels to life history theory trade-offs between quality and quantity. They examine how career incentives in academia reward fast, catchy publications over rigorous, slow science, leading to systemic outcomes driven by institutional incentives rather than individual intentions.
↗ 1:24:19 – 1:30:03The speakers explore why appealing to individual conscience and morality fails to fix systemic issues in science, politics, and media. Smaldino and the hosts argue that institutional incentive structures naturally select against people susceptible to moral appeals, meaning lasting change requires altering the actual selection mechanisms rather than just scolding bad actors.
↗ 1:30:03 – 1:36:21Dave Pietraszewski, David Pinsof, and guest Paul Smaldino discuss how incentive structures shape behavior and institutional norms, applying these ideas to the replication crisis in psychology and the social sciences. They examine how status games, professional stakeholders, and shifting methodological standards influence scientific progress.
↗ 1:36:21 – 1:40:54Paul Smaldino and David Pinsof discuss the role of theory and risk-taking in scientific research. They explore the balance between pursuing counterintuitive hypotheses and building on established knowledge, viewing science through the lens of collective problem-solving, variation, and evolutionary dynamics.
↗ 1:40:54 – 1:48:25The hosts and Paul Smaldino explore his scientific identity, the role of provocative modeling stances like using extremely unrealistic models, and how expressing unconventional views helps researchers feel less isolated in academia.
↗ 1:51:09 – 2:00:27Hosts Dave Pietraszewski and David Pinsof engage in lighthearted banter with guest Paul Smaldino about music, a Lego technic sun and moon model, and corporate sponsorships, before Paul shares a final, humorous closing word.
↗ 2:00:28 – 2:02:21Dave Pietraszewski and David Pinsof wrap up the episode, expressing their enjoyment of the conversation with Paul Smaldino, encouraging listeners to spread the word, leave reviews, and support the show.
↗ 2:02:21 – 2:04:11Host Dave Pietraszewski and guest Josh Tybur discuss how the behavioral immune system interacts with social valuation and intergroup attitudes. Tybur explains that tolerance for infection risk depends heavily on interpersonal value and traits like honesty rather than outgroup status alone. They also examine how immigrant assimilation affects disgust responses and anti-immigrant attitudes.
↗ 36:02 – 41:03Josh Tybur and the hosts discuss how feelings of disgust influence the moralization of behaviors such as incest and homosexuality. They explore theories on how cultural evolution, individual costs, and social coordination shape cross-cultural taboos, noting how attitudes toward homosexuality have shifted dramatically over time compared to other moral rules.
↗ 1:48:20 – 1:56:42The speakers explore whether moral cognition and mind-reading are universal or shaped by culture. Barrett argues that cross-cultural data reveal significant similarities in folk models of the mind, while acknowledging that different cultures emphasize distinct aspects of cognition, such as rational deduction versus embodied knowledge.
↗ 16:35 – 24:02The hosts and Clark Barrett discuss cultural variations in mental state terms, contrasting the Western focus on autonomous rationality with embodied and intuitive models of knowledge found in other traditions, such as the Quechua concept of yachai.
↗ 24:02 – 30:31The speakers examine how scientific disciplines value propositional logic over embodied craft, discuss the rhetorical nature of science, and explore potential connections between intuitive embodied models of the mind and supernatural or spiritual beliefs.
↗ 30:31 – 36:03Dave Pietraszewski, David Pinsof, and guest Clark Barrett discuss the tension between excessive hyper-rationalism and embodied, intuitive connections to the physical world. They touch upon historical shifts in science, Konrad Lorenz's critiques of mechanistic animal models, changing perspectives on animal and plant cognition, and the historical avoidance of anthropomorphism in behavioral science.
↗ 36:03 – 43:44The speakers transition to discussing hunting magic and pre-hunt songs among the Shuar community. Clark Barrett explores how these traditional practices can function as technologies of the self to induce focus and flow states. They also discuss how human technologies and rituals generally operate under a condition of incomplete individual knowledge.
↗ 43:44 – 48:06David Pinsof and Clark Barrett explore how supernatural concepts, telepathy, precognition, and magical readings often emerge naturally when complex causal processes remain opaque to the observer. They examine how highly developed social cognition, intuition, and cultural evolutionary processes can be misinterpreted as supernatural phenomena when underlying behavioral cues are not consciously understood.
↗ 54:32 – 1:00:12The speakers transition to discussing cultural narratives surrounding unexplained deaths, mentioning accounts of ghosts and phantasms. Guest Clark Barrett recounts his fieldwork in a Shuar community during the late 1990s involving a fishing trip, detailing the local use of the plant poison barbasco as a fishing technology.
↗ 1:09:13 – 1:12:13Clark Barrett, Dave Pietraszewski, and David Pinsof examine the need for greater demographic and conceptual diversity within evolutionary science. They discuss generative concepts like mismatch, critique the heavy reliance on Western philosophical traditions in moral psychology, and consider how engagement with diverse cultures can broaden scientific understanding.
↗ 1:26:22 – 1:36:22Host Dave Pietraszewski and guest Clark Barrett discuss the limitations of traditional vignette-based moral research. Barrett explains how psychology experiments often strip away relationship context and personal identity, whereas cross-cultural and anthropological evidence shows that moral evaluation heavily depends on social relationships rather than isolated actions.
↗ 1:36:23 – 1:44:57The hosts and Clark Barrett discuss how social embeddedness shapes moral norms across different groups and cultures. They explore examples such as Romani moral traditions regarding outsiders, illustrating why behaviors like lying are judged entirely by relationship context rather than abstract universal rules.
↗ 1:44:58 – 1:48:24Clark Barrett and the hosts discuss cross-cultural perceptions of intentionality in moral judgment, questioning the idea that some societies are purely outcome-oriented. Barrett explains empirical findings showing that people across diverse cultures make fine-grained legal and moral distinctions between different types of accidents, such as recklessness and negligence, highlighting the deep overlap between morality and epistemology.
↗ 1:48:24 – 1:54:54The speakers explore why cultural variation in moral systems appears to downplay mental states, connecting it to Julian Lapenie's modeling work on low-trust environments and ethnographic concepts of mental opacity. They also consider how local social ecologies, such as repeated interactions with unhelpful partners, shape whether people care about intentions versus direct consequences.
↗ 1:54:54 – 2:00:25As the episode winds down, the hosts thank Clark Barrett for fostering a kinder and more welcoming scientific culture. Barrett reflects on how many perceived conflicts between evolutionary science and other fields like cultural anthropology are unnecessary, advocating for an inclusive community that embraces human diversity and curiosity.
↗ 2:08:31 – 2:12:30Dave Pietraszewski and David Pinsof wrap up their conversation with guest Clark Barrett, thanking him for the discussion. In the outro, the hosts joke about merchandise like a podcast coffee table book and encourage listeners to support the show via Patreon, reviews, and social media.
↗ 2:15:51 – 2:18:54Katrine Whiteson discusses her collaboration with John Patton, detailing salivary science research and the significance of chicha, a traditional fermented beverage in Ecuador, contrasting indigenous diets with modern processed foods and their impact on human microbiomes.
↗ 4:52 – 12:03David Pinsof, Patrick Durkee, and Dave Pietraszewski examine status through the lens of coordination problems, arguing that correlation and shared expectations matter more than pure causality when agreeing on who holds high status. They discuss self-fulfilling status signals, such as clothing choices or linguistic styles, and how these hierarchies can rapidly shift or collapse.
↗ 43:38 – 48:05Dave Pietraszewski, David Pinsof, and guest Patrick Durkee discuss how status hierarchies operate beyond superficial folk conceptions, focusing on avoidance of conflict and ostracism rather than mere superiority. They explore the volatility of status symbols, cultural changes in what is valued, and why certain status games eventually collapse when perceived as ridiculous.
↗ 48:05 – 55:55Patrick Durkee, Dave Pietraszewski, and David Pinsof discuss how cultural aesthetics intertwine with status games, how different groups negotiate status with specific audiences, and how individuals calculate coalitional alliances and power dynamics within human groups.
↗ 1:00:08 – 1:07:33Host Dave Pietraszewski and guest Patrick Durkee discuss how environmental niches shape human behavior and personality traits. Drawing on simulations and comparisons to ecological diversity, Durkee explains that low-dimensional personality models like the Big Five may not reflect innate biological human nature, but rather emergent patterns of trait covariation driven by responses to local incentives.
↗ 1:36:13 – 1:45:50In the concluding part of the episode, the hosts and guest Patrick Durkee casually discuss scientific conference posters, debating whether fancy posters serve as costly status signals or unnecessary administrative burdens. Patrick advocates for simpler, low-cost presentation formats like basic printed paper.
↗ 2:10:21 – 2:12:16Host Dave Pietraszewski, David Pinsof, and guest Patrick Durkee discuss the effectiveness of academic research posters at conferences, comparing traditional formats with data-heavy visualizations. They humorously critique academic production standards, drawing parallels between low-production scientific papers and unedited podcasts.
↗ 2:12:16 – 2:16:15The hosts and guest discuss the slow uptake of evolutionary perspectives in the social sciences, psychiatry, and general education within the United States compared to countries like the UK. They examine how cultural divides, educational gaps, and the occasional misuse of evolutionary concepts hinder mainstream scientific acceptance.
↗ 1:07:44 – 1:12:07The hosts conclude the episode by thanking Amy Boddy, reminding listeners to subscribe, support the podcast on Patreon, and send in guest suggestions and topic ideas. The conversation ends with lighthearted banter about merchandise requests, specifically regarding a striped fanny pack filled with french fries.
↗ 1:51:35 – 1:53:52The hosts Dave Pietraszewski and David Pinsof introduce the podcast episode featuring guest co-host Christina Moya and guest Rob Boyd. They discuss the history of evolutionary psychology, the pioneering work of Rob Boyd and Pete Richardson on cultural evolution, and how these ideas fit within the broader Darwinian framework while celebrating scientific debate and respectful disagreement among researchers.
↗ 0:00 – 4:12Rob Boyd joins the conversation to discuss how he and Pete Richardson began studying cultural evolution in the mid-1970s. They explore the landscape of evolutionary theory at the time, including sociobiology, game theory, the influence of figures like Richard Alexander and E.O. Wilson, and how population genetics methods provided tools to model cultural transmission alongside biological selection.
↗ 4:16 – 12:01Dave Pietraszewski, David Pinsof, and Rob Boyd discuss how cultural information transmits differently than genetic traits, exploring developmental biology, phenotypic evolution, and the historical differences between UC Davis selectionist biology and other frameworks.
↗ 12:01 – 18:47The hosts and Rob Boyd examine the core theoretical disagreements regarding cultural evolution, contrasting the view that humans possess a psychology shaped to acquire cultural practices without full adaptive understanding against traditional adaptationist models.
↗ 39:20 – 48:11Dave Pietraszewski, David Pinsof, and guest Rob Boyd discuss the evolutionary explanations for extreme cultural behaviors like celibacy and group sacrifice, contrasting modular psychological accounts with cultural evolution and group-level selection of norms.
↗ 48:12 – 52:21The speakers debate the integration of evolutionary psychology with cultural evolution, examining how complex technological artifacts like kayaks, bicycles, and kinship structures develop over time through trial and error versus innate cognitive modules.
↗ 52:21 – 1:00:12Dave Pietraszewski, David Pinsof, and guest Rob Boyd discuss the relationship between evolved psychological adaptations and cultural evolution, examining whether sophisticated cognitive mechanisms complement cultural processes and how to disentangle genetic versus cultural explanations for universal behaviors like reading and marriage.
↗ 1:00:12 – 1:05:55The speakers discuss quantitative questions about human predispositions, credulity regarding social cues, and whether motivations or the cost-benefit calculations around conformity and social norms are shaped by cultural environments or innate propensities.
↗ 1:05:56 – 1:12:15Host Dave Pietraszewski and guest Rob Boyd discuss the evolutionary origins of morality and norms, debating whether moral outrage and rule-following stem from long-term evolutionary selection, social costs, or internalized cultural learning. Drawing on fieldwork in Fiji, they examine how deeply held moral beliefs and local norms shape human behavior and emotional responses across different timescales.
↗ 1:12:15 – 1:19:09The speakers—Dave Pietraszewski, David Pinsof, and Rob Boyd—examine multiple timescales operating in cultural evolution, distinguishing between genetically evolved intuitions, childhood norm internalization, and in-the-moment incentives. They conclude that many debates in behavioral science persist due to a lack of precise natural language distinctions and vocabulary.
↗ 1:19:09 – 1:24:18Rob Boyd discusses with the hosts how the timescale and amplitude of environmental fluctuations during the Pleistocene prevented the emergence of agriculture and large-scale cooperation among non-relatives, contrasting those conditions with the stable Holocene period.
↗ 1:36:19 – 1:39:50The speakers examine how evolutionary social science and biology differ from fields like economics and physics regarding training in mathematical theory. Rob Boyd highlights that unlike economists, biologists often lack deep training in formal modeling, which can lead to a disconnect between empirical work and theoretical foundations.
↗ 1:55:51 – 2:00:25Host Dave Pietraszewski and guest Rob Boyd discuss the integration of theory and empirical work in the evolutionary sciences and psychology. Boyd reflects on how his views have evolved over the decades, expressing increased skepticism about cultural group selection and conformist transmission based on recent empirical findings and theoretical limitations.
↗ 2:00:25 – 2:08:36The hosts and Rob Boyd discuss the narrowing gap between cultural evolution and evolutionary psychology. After concluding the scientific discussion, the hosts wrap up the episode with informal banter regarding podcast merchandise, Patreon support, and minimalist t-shirt designs.
↗ 2:08:37 – 2:11:09Dave Pietraszewski, David Pinsof, and guest Jen Byrd-Craven discuss evolutionary perspectives on parental investment, arguing that parents invest in children's social status and competencies because offspring face an intergenerational arms race. They also touch upon political indoctrination, cultural transmission, and religious adherence among youth.
↗ 1:24:10 – 1:27:29The speakers examine the phenomenon of perfect pitch, detailing how individuals map specific acoustic tones onto culturally constructed note categories during a critical developmental period in early childhood. They also discuss how musical training, instrument tuning, and cognitive representations relate to the objective physics of sound frequencies.
↗ 6:59 – 12:01The speakers examine why human emotions are so deeply connected to musical vibrations and acoustic stimuli. Greg Bryant suggests that our sensitivity to music builds upon foundational adaptations for vocal emotion communication, which cultural evolution has further amplified into a powerful super-stimulus.
↗ 21:12 – 24:02The hosts and Greg Bryant explore whether music is a biological or cultural adaptation, contrasting the social bonding hypothesis with the perspective that music functions as credible signaling. Bryant describes collaborative academic target articles debating these competing evolutionary theories.
↗ 58:14 – 1:00:11Dave Pietraszewski, David Pinsof, and guest Greg Bryant discuss the evolutionary origins of music, examining hypotheses around honest coalition signaling and infant-caregiver emotional communication. They explore human rhythmic entrainment capacities, comparing human motor coordination with vocal learning and beat-keeping abilities in animals such as sea lions and cockatoos.
↗ 1:00:11 – 1:07:23David Pinsof, Dave Pietraszewski, and Greg Bryant discuss why people form such a strong, vivid attachment to the music of their teenage years and early twenties. They connect this phenomenon to musical imprinting, cultural capital acquisition, and coalition signaling mechanisms that encode a person's native cultural background.
↗ 1:07:24 – 1:12:12In this excerpt from "Music and Acoustics with Greg Bryant," host David Pinsof discusses his preprint theory of laughter as a mechanism for diffusing communication mix-ups with guest Greg Bryant and host Dave Pietraszewski. They explore the evolutionary arms race between volitional signals and detectors, comparing laughter's acoustic properties to animal play vocalizations and examining how social cohesion and shared cultural background influence humor.
↗ 1:24:17 – 1:30:37The speakers continue exploring laughter by discussing how group coordination, community-wide linguistic norms, and the severity of social mix-ups affect the volume and duration of laughter. Greg Bryant, Dave Pietraszewski, and David Pinsof debate whether all humor relies on cultural encryption and shared background knowledge, noting the extreme complexity of analyzing jokes and social signals across different cultural contexts.
↗ 1:30:37 – 1:36:21Dave Pietraszewski, David Pinsof, and guest Greg Bryant discuss the role of micro mix-ups, social conventions, and precise timing in humor and conversational pragmatics, examining how slight temporal variations alter social inferences and enhance comedic delivery.
↗ 1:36:22 – 1:42:01The hosts and Greg Bryant explore the acoustic properties of laughter, analyzing whether malicious or hostile laughs have distinct biological signatures or are primarily cultural tropes related to emotional valence and social context.
↗ 1:42:01 – 1:48:23The speakers discuss the historical relationship and occasional friction between evolutionary psychology and human behavioral ecology. Martin Daly shares observations from editing the journal Evolution and Human Behavior, addressing concerns from anthropologists regarding the representation of psychological research versus field-based anthropological studies.
↗ 20:35 – 24:05Martin Daly discusses historical professional challenges faced by early anthropologists interested in evolutionary approaches, highlighting friction over terminology between human behavioral ecologists and evolutionary psychologists, and reflecting on his background outside mainstream psychology.
↗ 24:05 – 28:57Asked about the overall story of evolutionary psychology, Martin Daly reflects on his disappointments regarding infighting among potential allies, as well as his broader feelings on the reception of evolutionary approaches, including encounters with international scholars and researchers during events like Darwin Day in Iran.
↗ 1:21:05 – 1:24:19The speakers share personal reflections on committee work, institutional policies, and the limitations of predicting second-order effects in large human populations. They adopt a tragic view of human nature, critiquing the overconfident solutions often proposed by social scientists and arguing for greater humility in governance and intervention.
↗ 1:06:19 – 1:12:12Dave Pietraszewski, David Pinsof, and guest Mike McCullough discuss how group memories and victimhood narratives can mobilize political groups and foster cultural traditions. They explore the functional role of keeping historical grievances active, comparing societal patterns of maintaining collective animosities with national reflections on historical wrongdoings and collective guilt.
↗ 1:36:15 – 1:43:31Hosts Dave Pietraszewski and David Pinsof engage in lighthearted banter during the podcast outro. They discuss whether to continue traditional calls to support the show on Patreon or shift toward informal reflections, casual debriefs, and conversational tangents.
↗ 1:48:17 – 1:49:33The speakers explore Conroy-Beam's current sabbatical project involving agent-based models on the evolution of sex and gender. They discuss how evolutionary biology models sex through parental investment and reproductive rates, while considering whether gender functions as a cultural signaling mechanism for underlying reproductive strategies.
↗ 19:30 – 24:05The speakers transition to discussing gender, which Dan Conroy-Beam defines as a set of folk theories about how sex manifests in a particular ecology. They explore how human adaptability across diverse foraging niches requires learning local subsistence strategies, technologies, and social structures.
↗ 1:06:57 – 1:12:19Dave Pietraszewski, David Pinsof, and Dan Conroy-Beam discuss how humans act as intuitive socioecologists, learning lifeways and foraging strategies adapted to their local ecology over generations rather than evolutionary time. They also examine how status games are tethered to ecological resources and the developmental psychology of learning these cultural practices.
↗ 1:12:19 – 1:19:15The speakers discuss why individuals care about others' gender concepts, focusing on mating markets, offspring socialization, and environmental stability. Dan Conroy-Beam explains a model of gender policing where parents intervene in offspring behavior based on environmental stability, which can generate cultural conflicts and intergenerational tensions over mate preferences and lifeways.
↗ 1:39:25 – 1:48:27The hosts and Dan Conroy-Beam reflect on the scope of the manuscript, its connections to developmental psychology, and wrap up the episode with lighthearted banter about podcast traditions and future episodes.
↗ 1:58:09 – 2:00:29The hosts wrap up the episode by discussing conference swag options for the upcoming HBES meeting, joking about expensive items like plush toys, and considering recording short man-on-the-street style interviews with attendees at the conference.
↗ 2:02:42 – 2:06:07Hosts Dave Pietraszewski and David Pinsof, joined by co-host Zach Garfield, introduce guest Ray Hames, a professor emeritus at the University of Nebraska-Lincoln. They discuss his pioneering contributions to the early wave of human behavioral ecology, his methodological expertise in time allocation data, and his extensive career studying subsistence-based communities.
↗ 0:00 – 6:23Dave Pietraszewski and David Pinsof discuss with Ray Hames whether human behavioral ecology ignored psychology, exploring the phenotypic gambit, the shift toward a hypothetico-deductive framework inspired by economics, and the rejection of group selection models.
↗ 12:05 – 20:17Ray Hames discusses balancing quantitative data collection with qualitative ethnographic insights in anthropology, noting the influence of mentors like Nap Chagnon and the practical challenges of learning indigenous languages in the field.
↗ 20:19 – 24:11Dave Pietraszewski, David Pinsof, and guest Ray Hames discuss Hames's early experiences traveling to Yanomamo territory without modern communication tools, navigating initial isolation, and interacting with the community. They talk about dealing with playful or aggressive threats, learning the local language, and finding psychological comfort within the village compared to urban resupply trips.
↗ 24:11 – 28:45Dave Pietraszewski, David Pinsof, and Ray Hames discuss Napoleon Chagnon's larger-than-life personality in the field, his integration with the Yanomamo, and the extensive skills required for jungle hunting compared to Western methods. Hames attributes Chagnon's success and local respect to his outgoing nature, generosity, and sharp shooting ability.
↗ 36:13 – 44:37Ray Hames shares his experiences presenting research at academic conferences, noting a growing hostility toward scientific and evolutionary approaches within the American Anthropological Association. He and the hosts discuss how organizations like the Human Behavior and Evolution Society provided a much more welcoming intellectual home for empirical anthropological work.
↗ 44:38 – 48:18Ray Hames discusses with the hosts the difficulties of applying standard Western psychological questionnaires and concepts like depression to indigenous populations such as the Yanomamo. They examine how translation issues, intermediary languages, and cultural conditioning introduce noise into research, while also highlighting the social capital risks anthropologists face when asking intrusive personal questions.
↗ 48:19 – 53:42Ray Hames and the hosts explore public and scientific representations of indigenous peoples, addressing the persistent Rousseauian myth of the ecologically noble savage. Hames explains how political advocacy often creates hypocrisy regarding violence and environmental stewardship among tribal populations, and details how resource conservation actually functions under specific hierarchical and local market conditions in the Pacific.
↗ 53:44 – 1:00:22Dave Pietraszewski, David Pinsof, and guest Ray Hames discuss intergenerational resource transfers, contrasting the role of elders in hunter-gatherer societies where they are valued repositories of wisdom with modern Western societies where older individuals are often viewed as economic costs.
↗ 1:00:22 – 1:09:10The speakers explore homosexuality as an evolutionary mystery from a Darwinian perspective, discussing how cultural expectations around marriage, reproduction, and female sexual fluidity relate to relaxed selection pressures on heterosexuality.
↗ 1:09:11 – 1:12:24Host Dave Pietraszewski, David Pinsof, and guest Ray Hames discuss how social norms regarding fertility and patriarchy influence sexual orientation and gender variation across different societies. They explore cross-cultural documentation of third and fourth genders, noting how behavior and preference are disentangled within diverse social systems.
↗ 1:12:24 – 1:18:28Ray Hames, Dave Pietraszewski, and David Pinsof discuss foundational scholarly influences in behavioral ecology and evolutionary anthropology, including Richard Alexander and Don Simons, reflecting on graduate school experiences, academic mentorship, and the history of evolutionary approaches to human behavior at institutions like UCSB and Berkeley.
↗ 1:24:27 – 1:30:28Host Dave Pietraszewski and guests thank Ray Hames for his extensive contributions to evolutionary anthropology. They discuss the impact of his teaching and mentorship at the University of Nebraska, noting his commanding classroom presence and the inspiration he provided to a new generation of evolutionary scientists.
↗ 1:36:27 – 1:40:38Hosts Dave Pietraszewski and David Pinsof wrap up the episode by encouraging listeners to leave reviews, share the podcast via social media or word of mouth, and support them on Patreon, concluding with a lighthearted chat about music and 'vibes'.
↗ 1:40:42 – 1:41:59Steve Neuberg discusses with Dave Pietraszewski and David Pinsof how he approaches presenting evolutionary ideas in social psychology. Unlike the traditional Santa Barbara method of deriving hypotheses strictly from deep first principles, Neuberg often starts with known social phenomena and works backward, which he suggests makes evolutionary concepts more approachable and less threatening to traditional social psychologists.
↗ 24:08 – 30:32Dave Pietraszewski, David Pinsof, and guest Steve Neuberg discuss how academic theories serve as coalitional markers and why younger scholars navigate changing socio-political climates, institutional decay, and pressures surrounding scientific acceptance differently across generations.
↗ 48:13 – 54:41Hosts Dave Pietraszewski and David Pinsof celebrate their podcast's one-year anniversary while attending the Human Behavior and Evolution Society Conference in Rabat, Morocco. They discuss meeting listeners, the vibrant exchange of ideas at the conference, and highlight plenary speaker Hanako Kokko.
↗ 0:00 – 3:18Guest Brett Beheim joins the hosts to discuss a plenary talk by Stephen Vasey on the institutional growth of cultural evolution. They explore whether cultural evolution should function as an independent discipline or a set of cross-disciplinary techniques, drawing parallels to the historical Modern Synthesis in biology.
↗ 3:21 – 12:00The speakers reflect on recent international research perspectives, followed by contributions from anthropologist Brian Wood and other participants celebrating the HBES conference taking place in Africa for the first time, highlighting the society's global expansion.
↗ 12:54 – 14:19The hosts explore whether natural selection can be understood as literal design rather than a mere metaphor, arguing that functional means-end systems arise from gene frequency changes and evolutionary filtering. They suggest that even human intelligence and cultural evolution are underpinned by Darwinian trial-and-error processes, ultimately demonstrating that the design stance remains indispensable for understanding biological machinery.
↗ 15:28 – 24:02Following an abrupt provisional recording ending, Dave Pietraszewski and David Pinsof chat with guest Greg Bryant about recent conferences like HBES. They discuss community unification within the evolutionary social sciences, and Bryant shares findings from his bioacoustics research on how volitional laughter and nonverbal vocalizations function as emotional and valence signals.
↗ 40:44 – 45:12The hosts and Josh Ackerman explore why vaccine hesitancy often peaks in areas where vaccines have been most successful. They examine how the sensory experience of medical interventions conflicts with baseline instincts regarding bodily integrity and protection, and touch on cultural differences in risk aversion and parenting.
↗ 18:26 – 24:06Dave Pietraszewski, David Pinsof, and guest Josh Ackerman discuss parental overprotectiveness, exploring how factors such as fertility rates, health insurance structures, societal blame, and institutional risk-aversion shape modern approaches to childhood risk and safety.
↗ 24:06 – 26:43Dave Pietraszewski, David Pinsof, and guest Josh Ackerman discuss the relationship between the behavioral immune system and outgroup avoidance. They examine how cultural traditions and hygiene practices shape perceptions of infection risk from outsiders, noting that differences in norms can trigger suspicion and prejudice, which political actors may exploit.
↗ 1:12:16 – 1:20:29The hosts and Josh Ackerman discuss the opacity of disease transmission historically, leading people to rely on rituals and heuristics. They explore error management logic where individuals risk being perceived as contamination sources, and Ackerman introduces his current research on how people manage these social dilemmas through the concealment of sickness.
↗ 1:20:30 – 1:24:20Josh Ackerman shares findings from international studies showing that hiding illness is extremely common worldwide, with the United States actually ranking near the low end. The speakers examine individual-level predictors such as exclusion concern, psychopathy, and germ aversion, noting how these traits influence people's willingness to transmit illness.
↗ 1:30:36 – 1:36:26Hosts Dave Pietraszewski and David Pinsof wrap up the episode with a public service announcement about being sick and notifying friends, followed by a lighthearted outro discussing podcast monetization via Patreon, YouTube viewer comments about viral growth strategies, and whether maximizing listener numbers aligns with their goals.
↗ 1:39:57 – 1:47:20The speakers examine public goods game experiments conducted in different Hadza camps, discussing free-rider problems and the observation that camp-level cooperation varies significantly. They consider how social transmission and local expectations shape cooperative behavior in the absence of formal punishment.
↗ 20:08 – 24:04Dave Pietraszewski, David Pinsof, and guest Kris Smith discuss how sharing norms and reputation operate in Hadza communities. They examine an anecdote about a man who murdered his wife yet remained integrated and supported by the group, illustrating that reputational costs may not always translate into severe real-world penalties due to ecological constraints and interdependence.
↗ 24:04 – 28:12The speakers examine human behavioral variation, cautioning against essentializing any single hunter-gatherer group as the definitive proxy for ancestral human nature. They explore how local ecologies, high interdependence, and the scarcity of outside alternatives shape community responses, favoring mediation and relationship preservation over costly ostracism or punishment.
↗ 28:13 – 36:05Host David Pinsof and guest Kris Smith discuss relational mobility, network size, and how replaceability shapes cooperation across different cultures, contrasting the high replaceability of the Western world with the irreplaceable social networks of the Hadza.
↗ 36:05 – 40:50David Pinsof and Kris Smith explore whether cooperation and generosity reflect stable character traits or situational factors, noting that Hadza participants attribute negative behaviors to situations rather than enduring personal traits, unlike typical findings in Western contexts.
↗ 40:51 – 48:07The speakers examine how formal education, Western abstraction, and hypothetical task structures influence participant responses. They highlight the value of an evolutionary framework in anthropology for keeping researchers grounded about what psychological measures actually capture in the field.
↗ 54:48 – 1:00:11Hosts Dave Pietraszewski and David Pinsof introduce the podcast and guest Josh Snodgrass. They discuss the intersection of evolution, health, psychology, and social networks, highlighting how market integration and environmental shifts impact human physical and mental health in complex, non-straightforward ways.
↗ 0:00 – 3:48Host Dave Pietraszewski and guest Josh Snodgrass discuss the complex health transitions and chronic psychosocial stressors associated with market integration in indigenous communities like the Shuar. They explore how economic development introduces initial negative health impacts followed by medical improvements, but eventually triggers rising inequality, mental health challenges, and changes in how children perceive a good life.
↗ 24:06 – 30:05Josh Snodgrass discusses with the hosts the complexities of conducting longitudinal field research, measuring subjective perceptions of social support and control, and navigating the ethical realities of working with indigenous and marginalized communities collaboratively.
↗ 36:09 – 44:21The speakers examine why individuals in transitioning market economies experience shifting life aspirations and reduced satisfaction, driven by increased social inequality, relative deprivation, and exposure to differential access to modern amenities.
↗ 44:21 – 48:12Dave Pietraszewski, David Pinsof, and Josh Snodgrass discuss how indigenous communities experience market integration, highlighting the impact of inequality and racism. They examine how evolutionary psychology shapes social comparison, fitness, and striving within changing economic hierarchies.
↗ 48:13 – 51:39The speakers explore human needs, happiness, and meaning versus modern societal pressures in the United States. Josh Snodgrass compares human social environments to primate research by Robert Sapolsky, arguing that modern capitalist societies often misalign with our evolved psychological and physical needs.
↗ 51:40 – 1:00:15The hosts and Josh Snodgrass discuss how psychological science lags behind physical and chemical safety knowledge in modern societies. They examine cultural expectations around parenting, such as breastfeeding and independence, the challenges of establishing common knowledge on abstract health topics, and the role of cultural evolutionists in shaping public understanding.
↗ 1:00:15 – 1:07:29Dave Pietraszewski, David Pinsof, and Josh Snodgrass discuss the false dichotomy between the mind and body, exploring how physiological systems, gut health, and mental health are deeply interconnected. They examine the tension between individual lifestyle interventions and broader structural or community-level changes, noting the challenges of navigating both scales in modern society.
↗ 1:12:20 – 1:17:18The speakers discuss the importance of re-localizing communities, small-scale social interactions, and how mobility and transportation relate to market integration and social networks. Josh Snodgrass shares his excitement about interdisciplinary integration across anthropology, psychology, and biology, highlighting specific journals and meetings like the Human Biology Association.
↗ 1:17:18 – 1:24:23Guest Josh Snodgrass discusses a special issue of the American Journal of Human Biology featuring research from the Shuar Project. Josh and the hosts explore the political, practical, and ethical challenges of long-term fieldwork, highlighting how behind-the-scenes project realities and community engagement are rarely discussed in standard academic papers.
↗ 1:24:23 – 1:26:55Hosts Dave Pietraszewski and David Pinsof introduce guest Pascal Boyer and his work on cultural evolution and cognition. Pascal Boyer discusses the persistence of certain beliefs and motivations in the human mind that remain unaffected by explicit argument or factual correction, using personal anecdotes about birthday reluctance and urban legends.
↗ 0:00 – 8:19Pascal Boyer reflects on traditional approaches to cultural evolution and religious concepts as cognitive attractors focused primarily on consumption and mental stickiness. He argues for an expanded perspective that examines the production side of culture, investigating why people actively generate specific cultural and religious ideas rather than assuming concepts are randomly invented daily.
↗ 8:19 – 12:05Pascal Boyer discusses how cultural evolution studies have traditionally focused on consumption rather than production. He argues that understanding cultural material, such as religious ideas and puritanical morality, requires examining the fitness interests of individuals who actively push these ideas onto others, drawing connections to the Paris School of Evolutionary Psychology.
↗ 12:05 – 17:48Pascal Boyer, Dave Pietraszewski, and David Pinsof explore the psychology of politics, alliance models, and why political arguments are often driven by coalition building rather than truth-seeking. They use the market analogy of buyers and sellers to discuss cultural transmission, also touching on shamanism and the specific interests behind religious and cultural practices.
↗ 17:48 – 24:05Guest Pascal Boyer discusses leadership traits in small-scale societies, noting that religious competence and shamanism complement dominance and competence. He then explores why divination is such a successful cultural gadget, arguing that procedures producing utterances attributed to no particular person help communities avoid coalitional conflicts and achieve consensus.
↗ 24:05 – 32:48Pascal Boyer and the hosts discuss how divination practices operate not through random chance or explicit divine agency, but as causal indices of situations. They examine how public conformity and private doubts sustain these beliefs, creating preference falsification and coalitional agreement within communities.
↗ 36:07 – 43:25Dave Pietraszewski and Pascal Boyer reframe divination and related rituals as mechanisms that allow group members to collectively enforce behavioral changes on individuals without incurring direct personal costs. Later, Boyer transitions into discussing modern politics as a domain driven largely by coalitional alignment rather than explicit policy discussions.
↗ 43:26 – 48:11Pascal Boyer explores the structural challenges facing social sciences, highlighting powerful incentives against finding correct models due to coalitional dynamics and group-centric political discourse. He also distinguishes between folk religion and doctrinal religion as distinct phenomena rather than a single category.
↗ 1:08:10 – 1:12:18Dave Pietraszewski, David Pinsof, and Pascal Boyer discuss the incentive structures within academia and the social sciences. They explore how professional and status incentives shape disciplinary boundaries, how methods migrate across fields like anthropology and linguistics, and why institutional rewards often hinder genuine scientific progress.
↗ 1:12:18 – 1:19:13The speakers examine how foundational questions can escape dogmatic academic departments and be pursued by researchers with fewer coalitional biases. They reflect on John Tooby's observations about the systemic barriers built into modern scientific institutions and the convenience of blaming the public or voters rather than flawed reward structures.
↗ 1:19:13 – 1:24:18Pascal Boyer, Dave Pietraszewski, and David Pinsof discuss pendulum swings in academic theories, noting how cultural relativism and anthropological models oscillate between extremes. They examine why certain ideas become entrenched in poor equilibria and explore how the lack of unexplored wilderness shifts how researchers encounter human cultural diversity and autonomy.
↗ 1:24:18 – 1:30:51Guest Pascal Boyer discusses with hosts Dave Pietraszewski and David Pinsof a grandiose project to produce foundational, authoritative reference texts for evolutionary social sciences. Boyer draws an analogy to mathematics' Bourbaki group, considering how such syntheses could help outsiders like historians or political scientists navigate complex models of human behavior and cooperation.
↗ 1:36:22 – 1:42:05The conversation shifts to funding models, academic grants, and whether AI could automate literature synthesis—along with humorous caveats about AI averaging out median biases. The hosts and guest wrap up the episode by praising Pascal Boyer's influential work, such as 'Religion Explained', and joking about hosting future podcast recordings in Paris.
↗ 1:42:05 – 1:48:23Hosts Dave Pietraszewski and David Pinsof banter about funding a trip to Paris through their Patreon page, joke about finding their podcast ranked in the top one hundred social science podcasts, and express gratitude to their listeners after talking with guest Pascal Boyer.
↗ 1:48:23 – 1:49:31Hosts Dave Pietraszewski and David Pinsof chat about podcast merchandise ideas, joking about subtle t-shirts and the concealable social stigma sometimes associated with being evolutionary psychologists in academia.
↗ 1:48:31 – 1:50:03The hosts playfully explore extreme commitment signals like face tattoos as a way to filter uncommitted evolutionary psychologists, before wrapping up the episode with advice on understanding differing scientific perspectives.
↗ 1:50:04 – 1:52:27Hosts Dave Pietraszewski and David Pinsof introduce guest Michelle Sugiyama, discussing her research into the evolutionary psychology of storytelling, oral cultures, cultural transmission, and the broader pedagogical functions of arts and leisure in hunter-gatherer societies.
↗ 0:00 – 4:16The hosts and Michelle Sugiyama explore how hunter-gatherer nomenclature, including animal, place, and moon names, encodes ecological knowledge and practical affordances efficiently to aid memory, transmission, and survival.
↗ 4:17 – 12:04Dave Pietraszewski, David Pinsof, and guest Michelle Sugiyama discuss theories of language, contrasting the traditional view of language as an explicit code with Tom Scott Phillips's perspective of language as a technology for social cooperation and coordination. Referencing a Blackfoot creation story shared by Sugiyama, they examine how language and communication emerge to help individuals understand their roles, coordinate tasks, and facilitate teaching within a group.
↗ 12:04 – 17:37Dave Pietraszewski, David Pinsof, and Michelle Sugiyama examine how oral and hunter-gatherer cultures use stories featuring distant time and talking animals. They discuss whether counterfactual elements in myths function as analogical reasoning and provide cognitive flexibility for teaching ecological lessons.
↗ 24:06 – 29:36Dave Pietraszewski, David Pinsof, and guest Michelle Sugiyama discuss the structure of narratives in cognitive science and literary studies, the role of humor in traditional storytelling, and how trickster stories use humor and ridicule to reinforce social norms and improve memorability.
↗ 48:10 – 53:32The speakers examine the function of songs in traditional stories, rituals, and child-rearing as mnemonic devices for ecological and zoological knowledge, and debate whether storytelling and song are distinct evolutionary adaptations or cultural inventions built upon existing cognitive capacities.
↗ 53:32 – 1:00:16Dave Pietraszewski, David Pinsof, and guest Michelle Sugiyama discuss cultural evolution driven by instrumental reasoning and the mechanisms small-scale hunter-gatherer societies use to maintain story fidelity and enforce social norms. They examine how audiences correct narrators, how unauthorized storytelling carries social consequences, and how traditional communities place checks on misinformation and antisocial behavior.
↗ 1:00:16 – 1:07:09The hosts and Michelle Sugiyama explore how stories can be utilized for political, coalitional, and manipulative goals, comparing modern propaganda with traditional oral war histories. They discuss whether ancestral storytelling mirrors modern polarizing rumors and how small-scale societies employ war narratives primarily for education and tactical preparation rather than immediate political incitement.
↗ 1:07:09 – 1:12:17Dave Pietraszewski, David Pinsof, and guest Michelle Sugiyama discuss how historical narratives and stories can recount atrocities to instill fear, motivate groups, and perpetuate animosity against outgroups. They examine how propaganda shapes perceptions of enemy formidability and moral character to facilitate collective action, comparing these dynamics to interpersonal biases.
↗ 1:12:17 – 1:17:06As the episode concludes, Dave Pietraszewski and David Pinsof invite guest Michelle Sugiyama to share an overview of her research background, current work on mimicry in hunter-gatherer games, and her transition from literary studies to evolutionary psychology and archival research on oral storytelling.
↗ 1:17:06 – 1:23:15Host Dave Pietraszewski announces that Evolutionary Psychology the Podcast is taking a brief summer hiatus until August 18th. He encourages listeners to catch up on past episodes, thanks dedicated fans, and invites audience suggestions for future podcast topics via social media.
↗ 0:00 – 0:45Hosts David Pinsof and Dave Pietraszewski discuss David's recent experience serving on a criminal trial jury for assault with a deadly weapon, explaining how scheduling conflicts led David to interview guest Antoine Marie alone. They also touch upon the psychological nature of belief.
↗ 0:00 – 5:39Host Dave Pietraszewski and guest Antoine Marie discuss why applying a computational and mechanistic framework to social and political behavior feels counterintuitive to people. They explore how folk psychology, perceived cultural variation, and resistance to reductionism create intellectual barriers to adopting evolutionary psychological approaches to politics.
↗ 12:02 – 16:59Hosts and guest examine the dual challenges of studying politics through an evolutionary lens, discussing professional pushback, ideological dogmatism, and the dominance of social constructionism and Bourdieuian sociology in French academia. They highlight the importance of pedagogical good faith, viewpoint diversity, and managing the conflation of descriptive facts with moral implications.
↗ 16:59 – 24:07Host David Pinsof and guest Antoine Marie discuss the apparent contradiction between evolutionary theories emphasizing accurate beliefs about reality and the historical tendency of human groups to form competitive coalitions characterized by dogmatism, ideological orthodoxy, and low-cost abstract political beliefs.
↗ 24:07 – 29:34David Pinsof and Antoine Marie explore the distinction between intuitive and reflective beliefs, evaluating whether political ideologies primarily consist of reflective beliefs that are disconnected from everyday behavior and used mainly for social signaling, status acquisition, and micropropaganda.
↗ 29:34 – 36:07Dave Pietraszewski, David Pinsof, and guest Antoine Marie discuss whether political and anti-racist beliefs function as reflective beliefs that signal coalition loyalty rather than causal interventions. They explore how anti-racist activism can paradoxically trigger political backlashes and examine whether people hold genuine intuitive beliefs about abstract ideologies or use them primarily for social signaling.
↗ 36:07 – 42:07In the concluding segment, the hosts wrap up their conversation, discuss Antoine Marie's science communication on Instagram, and joke about podcast production value, emails, and past episodes involving probiotics and fiber.
↗ 1:18:31 – 1:23:01David Pinsof pushes back on the error management framework by questioning why people rely on causal relationships that violate folk ontologies and whether they hold sincere beliefs in them. Manvir Singh responds by discussing empirical evidence on perceived efficacy and introduces the concepts of sympathetic magic, similarity, and contagion.
↗ 16:40 – 24:01Dave Pietraszewski, David Pinsof, and guest Manvir Singh discuss whether human causal intuitions predispose people toward sympathetic magic or if humans are epistemically promiscuous when mapping out the world. They also explore how shamans engage with folk ontologies by invoking unseen agents to produce desired outcomes.
↗ 24:01 – 28:16The speakers debate whether sympathetic magic operates as a social and communicative signal directed at supernatural agents or as a direct causal mechanism. Drawing on ethnographic work in the Mentawai Islands, Singh notes that practitioners often experience these rituals as actual causal relationships rather than active communications with spirits.
↗ 28:16 – 36:02Manvir Singh discusses his work with Luke Lowacki challenging the traditional evolutionary psychology assumption that humans evolved exclusively in small, mobile, egalitarian bands. He explains that environments with dense, rich resources often fostered larger, sedentary, hierarchical societies, suggesting we should rethink the diversity of human social structures throughout history.
↗ 53:59 – 1:00:09Hosts Dave Pietraszewski and David Pinsof discuss with guest Manvir Singh how Pleistocene climatic volatility and generalist adaptations shaped human extractive foraging, cognitive evolution, and the deep links between ecology and social organization.
↗ 1:12:11 – 1:16:43Guest Manvir Singh shares his current book project on early Indo-European mythology, detailing linguistic and mythological reconstructions, while hosts Dave and David conclude the episode by highlighting the vitality of evolutionary behavioral sciences.
↗ 1:16:44 – 1:24:14Hosts Dave Pietraszewski and David Pinsof discuss podcast logistics, including summer scheduling challenges, traveling, and the importance of listener support through Patreon to help cover personal expenses.
↗ 1:24:14 – 1:26:22Dave Pietraszewski and David Pinsof chat about hot weather, ponder potential podcast guests from Australia and New Zealand, and wrap up the episode by wishing listeners a pleasant summer.
↗ 1:26:22 – 1:27:54Hosts Dave Pietraszewski and David Pinsof introduce philosopher Hanno Sauer, discussing the complexities of moral progress, human nature, and the importance of holding strong opinions loosely while maintaining openness to changing one's mind.
↗ 0:00 – 4:13Hanno Sauer joins the hosts to discuss his work on social class, analyzing how socioeconomic status, signaling theory, and status competition shape political conflicts, identity politics, and modern evolutionary hangovers.
↗ 4:14 – 12:00In this section, Dave Pietraszewski, David Pinsof, and guest Hanno Sauer discuss how complex global cooperation systems operate transparently or opaquely to individuals. Sauer invokes a naturalized version of Hegel's cunning of reason, comparing social structures and cultural evolution to spontaneous economic processes like Hayekian price signals where participants benefit from large-scale cooperation without needing to understand or plan it.
↗ 24:05 – 27:40Hanno Sauer examines where moral progress fits within spontaneous social evolution, distinguishing between conscious political movements like women's rights and broader glacial shifts. Sauer traces the Enlightenment view of automatic improvement, its catastrophic 20th-century disconfirmation via industrialized genocide, and its modern rehabilitation by thinkers like Steven Pinker, arguing that large-scale peaceful cooperation still offers genuine potential for human betterment.
↗ 27:40 – 36:10Dave Pietraszewski, David Pinsof, and guest Hanno Sauer discuss the historical trajectory of human conflict, examining why large-scale warfare, slavery, and conquest persisted as norms for millennia. They explore the transition from zero-sum competition to positive-sum economic growth, and how group antagonism continues to be easily activated despite modern institutional frameworks.
↗ 36:11 – 44:44The speakers examine why bizarre and cruel cultural practices, such as footbinding and genital mutilation, persist for centuries through mechanisms like pluralistic ignorance. Toward the end, the hosts and guest debate whether genuine moral learning has occurred or if peaceful behavior is merely a downstream externality of material changes like technology and economic abundance.
↗ 44:44 – 48:12Dave Pietraszewski, David Pinsof, and Hanno Sauer discuss how moral progress functions as an outcome rather than a deliberate internal change in human nature. They explore the idea that moral insights, cooperation, and institutions are offloaded into the environment—much like cooking externalized digestion—allowing technology and material changes to drive societal improvements.
↗ 48:12 – 56:54Hanno Sauer, Dave Pietraszewski, and David Pinsof examine emergent or Hayekian moral progress, contrasting zero-sum agricultural economies based on land ownership with positive-sum economic systems driven by ideas and innovation. They argue that technological and ecological shifts make past cruel practices optional and enable cooperative growth.
↗ 56:54 – 1:00:15Dave Pietraszewski, David Pinsof, and guest Hanno Sauer discuss whether modern society has truly achieved moral progress or merely adapted to new economic and ecological conditions. They debate whether ongoing conflicts reflect cultural atavisms rooted in outdated zero-sum resource mentalities, or if moral values are merely post-hoc rationalizations for shifts in material incentives and status games.
↗ 1:00:15 – 1:06:46The speakers examine what it means to learn as a society, focusing on the historical practice of slavery. Hanno Sauer argues that humanity fortuitously stumbled upon institutional arrangements that made slavery economically disadvantageous, while David Pinsof suggests that elaborate historical rationalizations for slavery indicate people were always intuitively uncomfortable with it.
↗ 1:06:46 – 1:12:16The speakers examine the challenge that moral relativism poses, noting that apparent deep cultural disagreements often reflect elite oppression rather than monolithic societal beliefs. Hanno Sauer and David Pinsof argue that marginalized groups subjected to practices like slavery or human sacrifice did not consent, revealing that historical atrocities are usually driven by dominant ruling groups rather than universal cultural values.
↗ 1:18:08 – 1:24:20Guest Hanno Sauer and hosts Dave Pietraszewski and David Pinsof discuss the concept of rationalization costs in history, suggesting that elaborate justifications for oppressive practices and state authority indicate underlying moral discomfort. They examine how intellectuals and political philosophers historically serve to rationalize actions for powerful elites.
↗ 1:24:20 – 1:32:29In the closing segment, host Dave Pietraszewski asks Hanno Sauer where listeners can find more of his work. Sauer discusses upcoming publications like 'Conspicuous Compunction' and his talks on the persistence of class structures, followed by lighthearted banter among the hosts regarding podcast updates and merchandise ideas.
↗ 1:32:30 – 1:36:20Hosts Dave Pietraszewski and David Pinsof discuss the annoyances of using imperial units for lengths and volumes compared to the metric system, comparing the podcast to an airing of grievances.
↗ 1:36:20 – 1:38:42The speakers explore the transition between positive-sum and zero-sum interactions, introducing concepts like cooperation energy and coordination capacity. Guest Athena Aktipis and host David Pinsof discuss how cultural events like Burning Man signal coordination capacity, and how bureaucratic structures can inadvertently undermine evolved human cooperative psychology.
↗ 29:23 – 36:11The speakers connect academic institutions and mentorship dynamics to ancestor-descendant conflict and extended phenotypes. Athena Aktipis outlines her diverse research and public engagement initiatives at Arizona State University through Cooperative Futures, detailing projects that apply the science of cooperation to emerging challenges such as artificial intelligence, interspecies fermentation, and public science communication.
↗ 1:08:49 – 1:12:19Athena Aktipis discusses her academic and entrepreneurial projects, including her work at ASU and Agentic Intelligence Systems. She describes organizing the Zombie Apocalypse Medicine Meeting as a playful framework for discussing challenging frontier topics and building cross-disciplinary collaboration, noting how shared language helps connect peers.
↗ 1:12:19 – 1:19:39In the closing portion of the episode, Dave Pietraszewski and David Pinsof reflect on the conversation's playful vibe, jokingly reference "the vortex," and encourage listeners to support the show through reviews or Patreon while suggesting listeners enjoy or play music.
↗ 1:25:51 – 1:27:13Hosts Dave Pietraszewski and David Pinsof introduce their podcast and guest Kathrine Starkweather, an anthropologist at UC Santa Barbara. They discuss her fieldwork with the Shodogore boat dwellers in rural Bangladesh, touching upon topics such as friendship, mating, childcare, ecology, and social systems.
↗ 0:00 – 3:09Host Dave Pietraszewski, David Pinsof, and guest Kathrine Starkweather discuss the unique boat-dwelling lifestyle of communities in Bangladesh, exploring how local ecological constraints, riverine geography, climate change, and strong seasonal variations shape their daily lives, social relationships, and subsistence strategies.
↗ 12:03 – 19:42Kathrine Starkweather explains how the gender division of labor operates among the boat-dwelling communities in Bangladesh, detailing how households flexibly flip their roles between fishing and trading across the rainy and dry seasons in response to environmental barriers and childcare needs.
↗ 19:42 – 24:05The speakers explore mating dynamics, marriage customs, and the influence of mothers-in-law within the Shodogore culture. They discuss how social groups mitigate safety risks during trading, examine patterns of monogamy and divorce, and compare human cooperative arrangements to broader evolutionary and cross-species patterns of mutual dependence.
↗ 31:20 – 36:07Dave Pietraszewski, David Pinsof, and guest Kathrine Starkweather discuss how ecology, economics, and seasonality shape human social structures and family cooperation. Focusing on boat-dwelling and land-based communities in Bangladesh, they explore how seasonal flooding affects contact networks, social isolation, and daily interactions among families.
↗ 36:07 – 43:16The hosts and guest draw parallels between seasonal isolation in small-scale societies and modern car culture in the US. They examine the modern loneliness epidemic through an economic lens, arguing that high transaction costs and physical barriers to socializing—rather than a lack of desire—prevent people from connecting.
↗ 43:17 – 48:09Guest Kathrine Starkweather reflects on returning from fieldwork to Western society and noticing stark contrasts in everyday helpfulness and social norms. The speakers discuss how cultural contexts and local cues shape prosocial behavior, noting that modern individualism and environmental barriers discourage spontaneous mutual aid compared to other global contexts.
↗ 54:20 – 1:00:09Dave Pietraszewski, David Pinsof, and guest Kathrine Starkweather discuss how superficial similarities and shared identifiers help groups solve coordination problems and reduce transaction costs. They explore how parents naturally form trust and mutual support networks in public spaces like airports and playgrounds to watch over children and manage safety.
↗ 1:00:09 – 1:06:13Kathrine Starkweather, Dave Pietraszewski, and David Pinsof examine fatherhood dynamics among the Tsimane/Shotogore families and in modern society, highlighting strong cultural norms around attentive dads. They also discuss shifting personal attitudes toward parenting behavior, empathy for tired parents, and pitfalls in evolutionary research regarding male and female behavioral variability.
↗ 1:06:13 – 1:12:15In the closing segment, hosts Dave Pietraszewski and David Pinsof thank guest Kathrine Starkweather for sharing her anthropological field experiences. They share a humorous anecdote illustrating David Pinsof's mix-up theory of humor, discuss listener support and merchandise ideas, and tease a potential future episode on artificial intelligence.
↗ 1:17:21 – 1:23:52