Razib Khan's Unsupervised Learning

On 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. McArdle's previous positions were at The Economist, The Atlantic and Newsweek. She has a new podcast for the Washington Post, Reasonably Optimistic, and also contributes to Central Air and The Dispatch. Razib and McArdle talk about the follies of populism, left and right, and the damage being done to America in the name of anti-elitism. Razib asks McArdle if there is any way out of a national debt crisis and fiscal insolvency (answer: probably not). Then they discuss the role high cost of living and confiscatory tax rates on the flight of capital and high-income individuals from blue states, and McArdle explains the historical-structural reasons that liberal cities cannot cut back on their top-heavy labor force. Razib and McArdle discuss immigration, trade and globalization, and the short-sightedness of MAGA-populism. Finally, they address AI, McArdle's usage of it, and the promise it has in revolutionizing work and transforming our society.

You can find the complete monologue here: https://www.razibkhan.com/p/monologue-race-genetics-history-and This is where you will find all the podcasts from Razib Khan's Substack and original video content. On this episode, Razib talks about race, and how to think about this touchy subject.

You can find the complete monologue here: https://www.razibkhan.com/p/monlogue-out-of-africa-is-not-dead On 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.

Today 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 diagnosing, quantifying, and repairing the structural variations and mutations that accumulate in human DNA. Bradley has BS is neuroscience and cell biology from Rutgers and a MS in computer science from New York University. The discussion first aims to focus on fundamental science concepts. What is genome integrity, and why does it matter? Bradley reviews the current state of the science to understand how errors creep into our genomic code over our lifetimes, and how it can lead to cancers and other pathologies. He points out that there is a wide variation in lifespan and cancer-risk across animal species, showing that in some ways nature may have "solved" the problem. In addition, Razib reiterates how complex and amazing any genome is, with billions of base pairs, and how incredible it is that our body's repair mechanisms function as well as they do. Bradley then discusses the practical goals of Matter Bio as they begin their first clinical trials. Rather than just focusing on basic science, Bradley's long-term focus is to make a difference in human lives. He discusses how the drastic gain in human life expectancy over the last 150 years already shows that we can increase longevity. Ultimately, Matter Bio aims to push the frontier so that we are less and less surprised by centenarians. Bradley also addresses the reality that a lot of the innovation in biotech right now, including what Matter Bio wants to achieve, is limited by the regulatory state, rather than what can be done in terms of the science or funding environment.

Today, 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 identify and correct the specific energy limitations holding them back. After earning his PhD in Nutritional Sciences from the University of Connecticut in 2012, he completed a postdoctoral research fellowship at the University of Illinois at Urbana-Champaign and subsequently served as an Assistant Professor of Health and Nutrition Sciences at Brooklyn College. He has a Substack. Razib and Masterjohn first discuss the impact of social media on the communication of science, and his wrangling with the public health establishment during the COVID-19 pandemic. Masterjohn explains how digging into the primary literature showed that the authorities were claiming far greater certainty than they should have, and recounts attempts to censor and rebuke him when he pointed this out. He also addresses some misrepresentations that Anthony Fauci engaged in during his tenure. Next, Razib asks Masterjohn about the insights he has gained from nutritional science in terms of how he lives his own life, and his overall philosophy of public health. Masterjohn pushes against the tendency to over-medicalize and rely on pharmaceuticals before looking to common-sense nutrition and exercise. They then discuss the importance of the mitochondrion in molecular genetics, and how that is relevant both in terms of physiology and evolution. Masterjohn then talks about his company, Mitome, and the added value of greater and greater metabolic and genetic information in the present age.