Razib Khan

Razib Khan's Unsupervised Learning

Science EN ↓ 180 episodes

Conversations about science, culture, and current affairs www.razibkhan.com

Author

Razib Khan

Category

Science

Podcast website

www.razibkhan.com

Latest episode

Jul 10, 2026

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Episodes

Davide Piffer: how Europeans became white 16.01.2026

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com On this episode of Unsupervised Learning , Razib talks to Davide Piffer , whose Substack examines genetic differences between populations. Piffer has been publishing on human genetic variation for a decade, and recently started a Substack, Piffer Pilfer , exploring similar issues in detail over a series of posts. Razib...

Aneil Mallavarapu: why machine intelligence will never be conscious 09.01.2026

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Today Razib talks to Aneil Mallavarapu , a scientist and technology leader based in Austin, Texas, whose career bridges the fields of biochemistry, systems biology, and software engineering. He earned his doctorate in Biochemistry and Cell Biology from the University of California, and has held academic positions at Ha...

Richard Hanania: his break with the Right and the rise of kakistocracy 04.01.2026

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com On this episode Razib, talks to Richard Hanania , a returning guest to the podcast . Hanania holds a Ph. D. from UCLA, a J.D. from the University of Chicago, and an undergraduate degree from CU Boulder in linguistics. He is a regular contributor to the Boston Globe and UnHerd , and has his own newsletter . Hanania is a...

Monologue: sex differences, 2 billion years B.P. to now 02.01.2026

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com On this episode, Razib talks about: * Why sex is evolutionarily deep and persists * Why males and females exist * Cultural norms of patriarchy * The feminist revolution and its connection to the rise of modern liberalism * Male-female differences in biology (size, strength and anatomy) * Male-female differences in psyc...

Monologue: year-end review of Proto-Indo-European origins and humanity's deep evolution and diversity 29.12.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com On this episode of Unsuperivsed Learning Razib reviews two big stories he has followed and written about on this Substack in 2025, Indo-European origins and how genomics has illuminated human evolution. * Two Steppes forward, one step back: parsing our Indo-European past * The cave where it happened: Denisova cavern’s...

Francis Young: Baltic paganism in modern times 25.12.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com On this episode, Razib talks to returning guest , Francis Young , a historian who teaches at Oxford. Young specialises in the history of religion and belief from ancient times to the present day, and provides expert indexes for academic books and translates medieval and early modern Latin. He holds a PhD from Cambridge...

Eric Cline: Love, War and Diplomacy, international relations in the Bronze Age 17.12.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com On this episode of Unsupervised Learning, Razib again talks to George Washington University archaeologist Eric Cline . The author of 1177 B.C. - The Year Civilization Collapsed and After 1177 B.C. - The Survival of Civilizations , Cline has a new book out, Love, War, and Diplomacy: The Discovery of the Amarna Letters a...

Shadi Hamid: American power and the post-woke age 12.12.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com On this episode of Unsupervised Learning Razib talks again with Washington Post columnist and repeat guest Shadi Hamid (listen to previous episodes ). A native Pennsylvanian of Egyptian ethnic background and Islamic faith, Hamid completed his Ph. D. in politics at Oxford University. He is co-host of the Wisdom of Crowd...

Vishal Ganesan and Anang Mittal: American Hinduism out of Indian Hinduism 05.12.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Cyber week deals continue. Lock in a lifetime subscription rate 25% off. Annual subscriptions now at $59/year (a $20 savings). This is my only yearly sale. Thanks for reading and thanks for subscribing! On this episode, Razib talks to Vishal Ganesan and Anang Mittal , two Indian-American Hindus who have been thinking a...

John Hawks and Chris Stringer: Neanderthals, Denisovans and humans, oh my! 29.11.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com On this very special episode, Razib talks to paleoanthroplogists John Hawks and Chris Stringer. Hawks is a paleoanthropologist who has been a researcher and commentator in human evolutionary biology and paleoanthropology for over two decades. With a widely read weblog (now on Substack), a book on Homo naledi , and high...

Sean Trende: 2025 elections and political demographics, past and future 21.11.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Today Razib talks to Sean Trende . He is a prominent American political analyst who currently serves as the Senior Elections Analyst for RealClearPolitics , a position he has held since 2010. He is also a Fellow at the American Enterprise Institute (AEI) and a lecturer at The Ohio State University, where he earned his...

Alex Young: IQ, disease and statistical genomics 14.11.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com This week on the Unsupervised Learning Podcast , Razib talks to r eturning guest Alex Young of UCLA and Herasight . Trained originally as a mathematician, Young studied statistics and computational biology at the University of Cambridge before doing a doctorate in genomic medicine and statistics at the Wellcome Trust C...

Zineb Riboua: Zohran Mamdani and Third-Worldism ascendent 07.11.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Today on Unsupervised Learning Razib talks to Zineb Riboua , a research fellow and program manager of Hudson Institute’s Center for Peace and Security in the Middle East. She specializes in Chinese and Russian involvement in the Middle East, the Sahel, and North Africa, great power competition in the region, and Israel...

Ed West: visitor from a dying empire 01.11.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Today Razib talks to Ed West, a British journalist and author. He has served as deputy editor of UnHerd and The Catholic Herald , and has written columns for The Spectator and The Daily Telegraph . He runs the Substack newsletter Wrong Side of History , where he explores culture, politics, and the longue durée of Weste...

Noah Smith: Japanese and American politics 25.10.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Today Razib talks to Noah Smith , an American economist-turned-blogger known for his commentary on economics and public policy. His blog, Noahpinion , is one of the most popular on Substack. He earned a PhD in economics at University of Michigan and served as an assistant professor of finance at Stony Brook  University...

Coltan Scrivner: the evolution and psychology of horror 17.10.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Today, Razib talks to Coltan Scrivner , a behavioral scientist, horror entertainment producer, and author, whose work centers on the psychological and evolutionary roots of our fascination with darkness, horror, and true crime. He is affiliated with the Department of Psychology at Arizona State University. Scrivner als...

Nate Soares: we are doomed (probably) 09.10.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Today Razib talks to Nate Soares the President of the Machine Intelligence Research Institute (MIRI). He joined MIRI in 2014 and has since authored many of its core technical agendas, including foundational documents like Agent Foundations for Aligning Superintelligence with Human Interests . Prior to his work in AI re...

Alexander Cortes: broscience, health science and fertility 02.10.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com On this episode of Unsupervised Learning, Razib talks to Alexander Cortes . Cortes is a trainer, fitness influencer and entrepreneur. He is the co-founder, along with his wife, of Ferta , a company that aims to “optimize your reproductive health and conceive naturally.” Born and raised in California, Cortes began his c...

Kat Rosenfield: after the vibe shift 25.09.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Today on Unsupervised Learning , Razib talks to Kat Rosenfield . She is an American novelist, journalist, and culture critic known for both her fiction and commentary on contemporary political debates. She began her career in publishing and as a reporter for MTV News before branching out into broader cultural criticism...

Eric Kaufmann: a cultural revolution in winter 19.09.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Today Razib talks to Eric Kaufmann , a Canadian professor of politics at the University of Buckingham, where he directs the Centre for Heterodox Social Science . He earned his BA from the University of Western Ontario and his MA and PhD from the London School of Economics. Prior to his current role, he held positions a...

Ryan P. Williams: the Claremont Institute standing athwart history 12.09.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Today Razib talks to Ryan P. Williams . He is president of The Claremont Institute , a position he has held since 2017. He is also a contributor to The Claremont Review of Books and started The American Mind . Williams earned a B.A. in political science and Economics from Hillsdale College and an M.A. in politics from...

Chad Orzel: the state of physics and academia in 2025 03.09.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Chad Orzel is a physicist and science writer who has been blogging for nearly twenty-five years. He’s the author of four books, Breakfast with Einstein: The Exotic Physics of Everyday Objects , How to Teach Quantum Physics to Your Dog , How to Teach Relativity to Your Dog , Eureka: Discovering Your Inner Scientist and...

Jonathan Anomaly and James Lee: is eugenics in our future? 28.08.2025

Recently, the new embryo-selection start-up Herasight has been in the news , finally coming out of stealth. Part of the buzz is because of the public involvement of well-known geneticists and academics like Alex Young and Joe Pickrell in Herasight’s algorithm development. Additionally, Noor Siddiqi , the CEO of Orchid , a competitor to Herasight (and onetime advertiser on this podcast), was a gues...

Jason Richwine: immigration moratorium now 21.08.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com On last week’s episode of Unsupervised Learning , Razib spoke with Alex Nowrestah, a vice president at the Cato Institute and a strong advocate for expanding legal immigration. This week, he turned to the other side of the debate with Jason Richwhine, a resident scholar at the Center for Immigration Studies and a vocal...

Alex Nowrasteh: an immigration libertarian in Trump's America 15.08.2025

This is a free preview of a paid episode. To hear more, visit www.razibkhan.com Three years ago, Razib recorded two podcasts with two immigration experts on different sides of the issue, Alex Nowrestah and Jason Richwhine . While Nowrasteh, who works for the libertarian Cato Institute as Vice President for Economic and Social Policy Studies, supports higher levels of legal immigration, Richwine, a...

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