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What is the current global birth rate? What factors have contributed, or are currently contributing, to this rate? What outcomes will we experience as a result, and when? How accurate are demographers' projections on this topic? How much of a problem is local over-population? Could a low global birth rate eventually be overcome by high birth rates within a few specific groups? Why does any of this matter? How is average age in the US changing? What should the American government do to address this change, if anything? Is there a correlation between religiosity and birth rates? How are birth rates connected to the culture wars in the US? Will artificial wombs someday help to stabilize the global population? What's the "right" or "best" size of the global population? Could global depopulation solve climate change?

Dean Spears is an economic demographer at the University of Texas at Austin and a founding executive director of r.i.c.e., a nonprofit working for children’s health in rural north India. He is the author of After the Spike: Population, Progress, and the Case for People. See more of Dean’s research at deanspears.net.

Staff

• Spencer Greenberg — Host / Director
• Josh Castle — Producer
• Ryan Kessler — Audio Engineer
• Uri Bram — Factotum
• WeAmplify — Transcriptionists
• Igor Scaldini — Marketing Consultant

Music

• Broke for Free
• Josh Woodward
• Lee Rosevere
• Quiet Music for Tiny Robots
• wowamusic
• zapsplat.com

Affiliates

• Clearer Thinking
• GuidedTrack
• Mind Ease
• Positly
• UpLift

Read the full transcript here.

Is AI going to ruin everything? What kind of AI-related dangers should we be most worried about? What do good institutions look like? Should designing better institutions be a major priority for modern civilizations? What are the various ways institutions decay? How much should we blame social media for the current state of our institutions? Under what conditions, if any, should the flow of information be regulated? What are some of the lesser-known kinds of AI disalignment? What actions should we take in light of the lack of consensus about AI?

Gabe Alfour has a background in theoretical computer science and has long been interested in understanding and tackling fundamental challenges of advancing and shaping technological progress. Fresh out of university, he developed a new programming language and founded a successful French crypto consultancy. Gabe has long had an interest in artificial intelligence, which he expected to be a major accelerator of technological progress. But after interacting with GPT-3, he became increasingly concerned with the catastrophic risks frontier AI systems pose, and decided to work on mitigating them. He studied up on AI and joined online open-source AI community EleutherAI, where he met Connor Leahy. In 2022, they co-founded Conjecture, an AI safety start-up. Gabe is also an advisor with ControlAI, an AI policy nonprofit. Email Gabe at [email protected], follow him on Twitter / X at @Gabe_cc, or read his writings on his blog at site.cognition.cafe.

Staff

• Spencer Greenberg — Host / Director
• Josh Castle — Producer
• Ryan Kessler — Audio Engineer
• Uri Bram — Factotum
• WeAmplify — Transcriptionists
• Igor Scaldini — Marketing Consultant

Music

• Broke for Free
• Josh Woodward
• Lee Rosevere
• Quiet Music for Tiny Robots
• wowamusic
• zapsplat.com

Affiliates

• Clearer Thinking
• GuidedTrack
• Mind Ease
• Positly
• UpLift

Read the full transcript here.

What defines a cult? Is there such a thing as a good cult? Do Clearer Thinking's tools actually help people? Why does Clearer Thinking share its tools for free for everyone to use? How legitimate is the research Clearer Thinking does to create its tools? Is that research too reliant on self-report? Do Clearer Thinking's tools focus too much on the average person and fail to account for significant variance among people? Should AI companies be required to create and release text watermarking tools? Should smart, knowledgeable people speak out more? Would the average person think (without priming or knowledge of the discourse around it) that Elon Musk's gesture at the inauguration was a Nazi salute? Does Spencer sometimes coin new terms where useful terms already exist? Does Spencer think that everyone should adopt valuism, his life philosophy? Is magic real? What critiques have stuck with Spencer over the years and shaped his work?

Staff

• Spencer Greenberg — Host / Director
• Josh Castle — Producer
• Ryan Kessler — Audio Engineer
• Uri Bram — Factotum
• WeAmplify — Transcriptionists
• Igor Scaldini — Marketing Consultant

Music

• Broke for Free
• Josh Woodward
• Lee Rosevere
• Quiet Music for Tiny Robots
• wowamusic
• zapsplat.com

Affiliates

• Clearer Thinking
• GuidedTrack
• Mind Ease
• Positly
• UpLift

Read the full transcript here.

NOTE: The video version of this conversation is available on YouTube: https://youtu.be/hWNknrc23Fo

In light of the replication crisis, should social scientists try to replicate every major finding in the field's history? Why is human memory so faulty? And since human memory is so faulty, why do we take eyewitness testimony in legal contexts so seriously? How different are people's experiences of the world? What are the various failure modes in social science research? How much progress have the social sciences made implementing reforms and applying more rigorous standards? Why does peer review seem so susceptible to importance hacking? When is observation more important than interpretation, and vice versa? Do the top journals contain the least replicable papers? What value do Freud's ideas still provide today? How useful are neo-Freudian therapeutic methods? Should social scientists run studies on LLMs? Which of Paul's books does ChatGPT like the least?

Paul Bloom is Professor of Psychology at the University of Toronto, and Brooks and Suzanne Ragen Professor Emeritus of Psychology at Yale University. Paul Bloom studies how children and adults make sense of the world, with special focus on pleasure, morality, religion, fiction, and art. He has won numerous awards for his research and teaching. He is past-president of the Society for Philosophy and Psychology, and co-editor of Behavioral and Brain Sciences. He has written for scientific journals such as Nature and Science, and for popular outlets such as The New York Times, The Guardian, The New Yorker, and The Atlantic Monthly. He is the author of seven books, including his most recent, Psych: The Story of the Human Mind. Find more about him at paulbloom.net, or follow his Substack.

Staff

• Spencer Greenberg — Host / Director
• Josh Castle — Producer
• Ryan Kessler — Audio Engineer
• Uri Bram — Factotum
• WeAmplify — Transcriptionists
• Igor Scaldini — Marketing Consultant

Music

• Broke for Free
• Josh Woodward
• Lee Rosevere
• Quiet Music for Tiny Robots
• wowamusic
• zapsplat.com

Affiliates

• Clearer Thinking
• GuidedTrack
• Mind Ease
• Positly
• UpLift

Read the full transcript here.

What does it mean to bring your "A-game" to relationships? What is emotional "fitness"? What forces do relationships need to balance to remain stable and healthy? Are we attracted to a particular brand of heartbreak? What are "original attachment wounds"? Can Dark Triad traits be tamed? What emergent properties do relationships exhibit? What nourishes a relationship? When should relationships end? Why might people choose to maintain abusive relationships? How can trauma victims regain their sense of agency? What is self-care really about?

As a cutting-edge Relationship Coach, Annie Lalla maps the emotional complexities of long-term romance. She helps clients & students build romantic esteem by cultivating collaboration skills that go beyond power struggles, shame, or blame. Annie stands for True Love and is world-class at supporting relational growth across a lifetime. Follow her on Instagram at @lallabird, email her at [email protected], or learn more about her on her website, annielalla.com.

Staff

• Spencer Greenberg — Host / Director
• Josh Castle — Producer
• Ryan Kessler — Audio Engineer
• Uri Bram — Factotum
• WeAmplify — Transcriptionists
• Igor Scaldini — Marketing Consultant

Music

• Broke for Free
• Josh Woodward
• Lee Rosevere
• Quiet Music for Tiny Robots
• wowamusic
• zapsplat.com

Affiliates

• Clearer Thinking
• GuidedTrack
• Mind Ease
• Positly
• UpLift

Read the full transcript here.

Do we still have a lot to learn from ancient Greco-Roman philosophies? What is telos? What is ataraxia? What is "dark" Stoicism? What is the "resilient asshole" problem? What is (or what has) value according to Stoicism? What are the similarities and differences between Stoicism and Buddhism? Why might someone prefer a life "philosophy" over a set of life "hacks"? What is good? And how do you know? How could you know if you potentially adopted the wrong life philosophy? What value can modern humans find in Stoicism, Epicureanism, Pyrrhonism, and Cyrenaicism?

Gregory Lopez has been practicing Stoicism for over a decade and Buddhism a bit longer. He is co-author of A Handbook for New Stoics and Beyond Stoicism. He is also the founder of the New York City Stoics, co-founder of The Stoic Fellowship, a member of the Modern Stoicism team, and a faculty member of Stoa Nova. Additionally, he co-facilitates Stoic Camp New York annually with Massimo Pigliucci. You can find out more and contact him at his website, greglopez.me.

Staff

• Spencer Greenberg — Host / Director
• Josh Castle — Producer
• Ryan Kessler — Audio Engineer
• Uri Bram — Factotum
• WeAmplify — Transcriptionists
• Igor Scaldini — Marketing Consultant

Music

• Broke for Free
• Josh Woodward
• Lee Rosevere
• Quiet Music for Tiny Robots
• wowamusic
• zapsplat.com

Affiliates

• Clearer Thinking
• GuidedTrack
• Mind Ease
• Positly
• UpLift

Read the full transcript here.

In times of such extreme political polarization, where can we find common ground? Should we require disclosure of AI authorship? Should AI companies be required to provide fingerprinting tools that can identify when something has been generated by one of their models? Should movie theaters be required to report when movies actually start? Should members of Congress be prohibited from insider trading? Should gerrymandering be outlawed? Should there be age limits on political office? Should we provide free school meals nation-wide? What roadblocks stand in the way of people being able to vote on their phones? What's Spencer's formula for productivity? Which of the productivity factors do most people fail to take into account? What are some "doubly-rewarding" activities? Is altruism a harmful idea? What are people worst at predicting?

Bradley Tusk is a venture capitalist, political strategist, philanthropist, and writer. He is the CEO and co-founder of Tusk Ventures, the world's first venture capital fund that invests solely in early stage startups in highly regulated industries, and the founder of political consulting firm Tusk Strategies. Bradley's family foundation is funding and leading the national campaign to bring mobile voting to U.S. elections and also has run anti-hunger campaigns in 24 different states, helping to feed over 13 million people. He is also an adjunct professor at Columbia Business School. Before Vote With Your Phone, Bradley authored The Fixer: My Adventures Saving Startups From Death by Politics and Obvious in Hindsight. He hosts a podcast called Firewall about the intersection of tech and politics, and recently opened an independent bookstore, P&T Knitwear, on Manhattan's Lower East Side. In his earlier career, Bradley served as campaign manager for Mike Bloomberg's 2009 mayoral race, as Deputy Governor of Illinois, overseeing the state's budget, operations, legislation, policy, and communications, as communications director for US Senator Chuck Schumer, and as Uber's first political advisor. Connect with Bradley on Substack and LinkedIn.

Further reading

• Episode 230: Who really controls US elections? (with Bradley Tusk)

Staff

• Spencer Greenberg — Host / Director
• Josh Castle — Producer
• Ryan Kessler — Audio Engineer
• Uri Bram — Factotum
• WeAmplify — Transcriptionists
• Igor Scaldini — Marketing Consultant

Music

• Broke for Free
• Josh Woodward
• Lee Rosevere
• Quiet Music for Tiny Robots
• wowamusic
• zapsplat.com

Affiliates

• Clearer Thinking
• GuidedTrack
• Mind Ease
• Positly
• UpLift

Read the full transcript here.

What do westerners misunderstand about "tribal" cultures? How does justice in very small communities differ from justice in large nation-states? Why do some cultures have bride prices (i.e., groom's family pays bride's family) and others have dowries (i.e., bride's family pays groom's family)? How do cultures differ with respect to the body parts they sexualize? How many cultures across time have used psychedelics? Do all religions make moral demands? How do religions change as the people who practice them grow in number? How strong is the link between religious belief and individual behavior? To what extent are anthropologists conscious of their own behaviors and biases? Why do certain types of false beliefs persist for so long? How do shamanism and witchcraft differ? Aside from their official roles, what de facto roles do shamans play in their communities? What personality traits and/or mental health conditions are linked to wanting to become a shaman? Are any taboos universal across all human cultures? Why are taboos against incest and cannibilism so common? What is the value of anthropology?

Manvir Singh is an anthropologist at the University of California, Davis and a regular contributor to The New Yorker, where he writes about cognitive science, evolution, and cultural diversity. He studies complex cultural traditions that reliably emerge across societies, including dance songs, lullabies, hero stories, shamanism, and institutions of justice. He graduated with a PhD from Harvard University in 2020 and, since 2014, has conducted ethnographic fieldwork with Mentawai communities on Siberut Island, Indonesia. He is the author of Shamanism: The Timeless Religion (2025). Follow him on Twitter / X at @mnvrsngh or @manvir on Bluesky, or learn more about him on his website, manvir.org.

Staff

• Spencer Greenberg — Host / Director
• Josh Castle — Producer
• Ryan Kessler — Audio Engineer
• Uri Bram — Factotum
• WeAmplify — Transcriptionists
• Igor Scaldini — Marketing Consultant

Music

• Broke for Free
• Josh Woodward
• Lee Rosevere
• Quiet Music for Tiny Robots
• wowamusic
• zapsplat.com

Affiliates

• Clearer Thinking
• GuidedTrack
• Mind Ease
• Positly
• UpLift

Read the full transcript here.

Can you tell which is the real Spencer and which is his AI clone? How irrational are people really? What do most people misunderstand about psychology? What are the best tools to use to accomplish various societal goals? How good are we at predicting the future? Why do we have such a hard time overcoming our tribal instincts in politics? How many people get into politics for narcissistic reasons? What systems could be put in place to help prevent government corruption? Do we have free will? Are numbers real? Is beauty real? What are some things religious people might be right about?

Staff

• Spencer Greenberg — Host / Director
• Josh Castle — Producer
• Ryan Kessler — Audio Engineer
• Uri Bram — Factotum
• WeAmplify — Transcriptionists
• Igor Scaldini — Marketing Consultant

Music

• Broke for Free
• Josh Woodward
• Lee Rosevere
• Quiet Music for Tiny Robots
• wowamusic
• zapsplat.com

Affiliates

• Clearer Thinking
• GuidedTrack
• Mind Ease
• Positly
• UpLift

Read the full transcript here.

How big is the current mental health crisis? What's causing it? What do we know about the age distribution of people suffering from mental health issues right now? Is the crisis just that more people are suffering from anxiety and depression, or is there an increase in other disorders as well? Why are psychiatrists seemingly very picky about which insurance policies they'll accept? What percent of hospital psychiatric patients are repeat visitors? What would an ideal mental health system look like? How effective are addiction detox programs? Why might suicide prevention programs backfire? Which disorders are associated with the highest risks of suicide? If a person attempts suicide but is saved, how likely are they to attempt it again? When is it better to see a psychologist than a psychiatrist and vice versa? What are some of the most exciting and most worrying parts of genetic medicine? How should we decide which diseases to study and which treatments to develop? What's an "invisible" victim? Is there any solution to the problem of invisible victimhood? How effective was the Affordable Care Act (AKA "Obamacare")? Are we collectively spending too much money on end-of-life care? How can medicine better incorporate preventive care? What is body integrity disorder? Why do we have such a hard time combating our biases relating to physical beauty? Should polygamy be morally and/or legally permissible? Should medical aid in dying (AKA "assisted suicide") be morally and/or legally permissible? Are doctors too willing to resuscitate dying patients?

Jacob M. Appel is currently Professor of Psychiatry and Medical Education at the Icahn School of Medicine at Mount Sinai in New York City, where he is Director of Ethics Education in Psychiatry, Associate Director of the Academy for Medicine and the Humanities, and Medical Director of the Mental Health Clinic at the East Harlem Health Outreach Program. Jacob is the author of five literary novels, ten short story collections, an essay collection, a cozy mystery, a thriller, two volumes of poems and a compendium of dilemmas in medical ethics. He is Vice President and Treasurer of the National Book Critics Circle, co-chair of the Group for the Advancement of Psychiatry’s Committee on Psychiatry & Law, and a Councilor of the New York County Psychiatric Society and of the American Academy of Psychiatry & Law. Learn more about him at his website, jacobmappel.com.

Further reading

• Jacob (2019 documentary)
• "They Decide Who Lives, Who Dies" by Shana Alexander

Staff

• Spencer Greenberg — Host / Director
• Josh Castle — Producer
• Ryan Kessler — Audio Engineer
• Uri Bram — Factotum
• WeAmplify — Transcriptionists

Music

• Broke for Free
• Josh Woodward
• Lee Rosevere
• Quiet Music for Tiny Robots
• wowamusic
• zapsplat.com

Affiliates

• Clearer Thinking
• GuidedTrack
• Mind Ease
• Positly
• UpLift