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Razib Khan"s Unsupervised Learning

Razib Khan

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

science life sciences

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15:16

Matthew Schmitz: Christianity as identity, New...

Razib Khan"s Unsupervised Learning ·

2026/04/10

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comToday Razib talks to Matthew Schmitz, a journalist who previously served as an editor at the religious journal First Things. He is the cofounder of the online magazine Compact, alongside Edwin Aponte and Sohrab Ahmari. He currently serves as editor of Compact, religion editor of Washington Post Opinions, and co-host of the podcast Against the Grain. Compact His essays on politics and culture have appeared in The New York

14:56

Megan McArdle: the follies of populism, impending...

Razib Khan"s Unsupervised Learning ·

2026/04/02

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn this episode of Unsupervised Learning Razib talks to returning guest Megan McArdle. She is the author of The Up Side of Down: Why Failing Well Is the Key to Success and a Washington Post columnist and op-ed board member. McArdle grew up in New York City and attended Riverdale Country School. She obtained an undergraduate degree in English from University of Pennsylvania and an MBA from the University of Chicago

14:59

Monologue: Race - genetics, history and sociology

Razib Khan"s Unsupervised Learning ·

2026/03/27

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn this episode, Razib talks about race, and how to think about this touchy subject.* Categorization of humans in biomedical research: genes, race and disease* The Apportionment of Human Diversity* Human genetic diversity: Lewontin’s fallacy* A Family Tree in Every Gene* How Genetics Is Changing Our Understanding of ‘Race’* Race: The Power of an Illusion* A Genealogical Interpretation of Principal Components Analysis*

15:01

Monologue: Out-of-Africa is not dead but...

Razib Khan"s Unsupervised Learning ·

2026/03/23

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn this episode Razib talks about where we are when it comes to “Out-of-Africa,” Neanderthal origins and the broader state of understanding the dynamics of Homo evolution.Cited:* Hypothesis: A modern human range expansion ~300,000 years ago explains Neandertal origins* Did Levallois tools make Neanderthals human?* Interbreeding between Neanderthals and modern…

29:58

Chris Bradley: better science for longevity

Razib Khan"s Unsupervised Learning ·

2026/03/14

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comToday Razib talks to Chris Bradley, a serial entrepreneur and the CEO and Co-Founder of Matter Bio, a company dedicated to preserving genome integrity and addressing the root causes of aging. With a multidisciplinary background spanning neuroscience, cell biology, and computer science, Bradley aims to translate early-stage biotech concepts into practical therapies that can extend human lifespan Matter Bio is focused on

29:57

Chris Masterjohn: COVID-19 to mitochondrial health,...

Razib Khan"s Unsupervised Learning ·

2026/03/06

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comToday, Razib talks to Chris Masterjohn, a nutritional scientist and leading expert in mitochondrial biology who believes hidden energy bottlenecks underlie much of modern disease. After years of work as a professor and researcher, he founded Mitome, the first mitochondrial analysis designed for everyday health, and serves as its Scientific Director. His mission is to make mitochondrial testing accessible so people can

20:03

Mike White: academia and genomics in the 21st century

Razib Khan"s Unsupervised Learning ·

2026/03/01

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn this episode of Unsupervised Learning, Razib talks to Mike White, a Genetics professor at the Washington University in St. Louis. White has a position at the School of Medicine in St. Louis, where he leads a research team focused on understanding the biophysical architecture of regulatory DNA. He earned a B.A. in music before pivoting to the sciences, receiving his Ph.D. in Biochemistry from the University of Rochester

29:59

Aaron Renn: Heartland urbanism and leaving Left...

Razib Khan"s Unsupervised Learning ·

2026/02/20

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn this episode of Unsupervised Learning Razib talks to Aaron Renn. Renn is a writer, consultant, and urban analyst known for his work on the challenges facing American cities and religious institutions in the 21st century. He is a contributor to The American Reformer and the author of Life in the Negative World, a book exploring the cultural shifts regarding Christianity in America. Renn previously served as a Senior

25:02

Daniel Tabin: ancient DNA, the good, bad and ugly

Razib Khan"s Unsupervised Learning ·

2026/02/13

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn this episode of Unsupervised Learning Razib talks to Daniel Tabin, a 5th-year Ph.D. student in David Reich’s lab in the Department of Human Evolutionary Biology. His research focuses on using ancient and modern DNA to answer questions about human history. Tabin completed a degree in Computer Science and Math and Master’s in Computer Science from Rensselaer Polytechnic Institute. He Ph.D. project involves the population

94:18

Joe Henrich and Cosimo Posth: the weirdest people in...

Razib Khan"s Unsupervised Learning ·

2026/02/04

Between 2017 and 2020 Razib co-hosted the podcast The Insight. A year ago it went offline, but now the archives are back! On this episode of Unsupervised Learning, Razib re-posts two important episodes from The Insight. First, a conversation with evolutionary anthropologist Joe Henrich about his 2020 book The WEIRDest People in the World: How the West Became Psychologically Peculiar and Particularly Prosperous. Second, starting at 51 minutes and 45 seconds, Razib interviews Cosimo Posth about a

29:59

Peter Nimitz: the story of the Slavs

Razib Khan"s Unsupervised Learning ·

2026/01/30

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn this episode of Unsupervised Learning Razib talks to Peter Nimitz about the rise of the Slavs. His Substack, titled Nemets, explores world history through the lenses of archaeology, paleogenetics, and historical processes. His writing focuses on "deep history," such as the Bronze Age Collapse and the migration of Indo-European peoples, while connecting these ancient shifts to broader patterns of civilizational rise and

15:02

Jesse Arm: Gen Z Republicans and their views

Razib Khan"s Unsupervised Learning ·

2026/01/23

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn this episode Razib talks to Jesse Arm, VP of external affairs at the Manhattan Institute. His writing and commentary have appeared in the New York Times, Wall Street Journal, The Atlantic, New York Post, Fox News, City Journal and Jerusalem Post. Arm graduated with honors from the University of Michigan, where he majored in international political economy, and studied language and international affairs at Tel Aviv

21:11

Davide Piffer: how Europeans became white

Razib Khan"s Unsupervised Learning ·

2026/01/16

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn 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 asks Piffer about the difficulties in analyzing polygenic scores from quantitative traits in ancient DNA

20:02

Aneil Mallavarapu: why machine intelligence will...

Razib Khan"s Unsupervised Learning ·

2026/01/09

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comToday 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 Harvard Medical School, where he contributed to the Department of Systems Biology and developed the "Little

19:59

Richard Hanania: his break with the Right and the...

Razib Khan"s Unsupervised Learning ·

2026/01/04

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn 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 also the author of The Origins of Woke: Civil Rights Law, Corporate America, and the Triumph of Identity

14:59

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

Razib Khan"s Unsupervised Learning ·

2026/01/02

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn 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 psychology* How psychological differences impact individual performance and social norms* Why hyper-patriarchal

20:02

Monologue: year-end review of Proto-Indo-European...

Razib Khan"s Unsupervised Learning ·

2025/12/29

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn 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 congress of ancient peoples* The wandering Fulani: children of the Green Sahara* John Hawks and Chris

20:00

Francis Young: Baltic paganism in modern times

Razib Khan"s Unsupervised Learning ·

2025/12/25

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn 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 University and is the author, editor or co-author of over 20 books. On his last visit to the podcast, he

20:00

Eric Cline: Love, War and Diplomacy, international...

Razib Khan"s Unsupervised Learning ·

2025/12/17

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn 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 and the Bronze Age World They Revealed. While 1177 B.C. closed with the end of the first global

19:59

Shadi Hamid: American power and the post-woke age

Razib Khan"s Unsupervised Learning ·

2025/12/12

This is a free preview of a paid episode. To hear more, visit www.razibkhan.comOn 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 Crowds podcast and website with Damir Marusic, and now the author of his own Substack and a recent book, The

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Razib Khan"s Unsupervised Learning

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