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A two-minute clip of Richard Feynman explaining why he considers much of social science pseudoscience. He stresses how easy it is to fool yourself and how much care real knowledge takes.

A short excerpt of Elon Musk, interviewed by Kevin Rose, explaining first-principles reasoning with the example of the car versus improving horse carriages. He warns it takes much more mental energy than reasoning by analogy.

Chamath Palihapitiya's Stanford GSB View From The Top talk on money as an instrument of change. HN mostly knows it for his remarks on social media's dopamine-driven feedback loops and regrets about Facebook.

Former CIA officer Frank Snepp describes how, working in Vietnam from 1969 to 1975, he planted stories in major newspapers to support Agency goals. He notes that some younger reporters refused to take the bait.

Jonna Mendez, former CIA Chief of Disguise, explains how disguises are used in intelligence work and what makes deception effective, including changing one's gait.

A Channel 4 News interview with technologist Jaron Lanier, who argues that social media damages people's lives. He discusses how Facebook, YouTube and Google use algorithms and data collection to shape what users see.

Chamath Palihapitiya talks with Jason Calacanis about how he bought into the mythology of Silicon Valley, which he calls a Ponzi scheme, and about rebuilding Social Capital. He urges founders to grow slowly and build what matters.

A 2015 interview in which physicist Freeman Dyson, then 91, argues that global warming concerns are exaggerated, that CO2 is beneficial and that climate models oversimplify complex systems. It is posted on a channel that opposes climate consensus.

A ten-minute clip of Richard Feynman describing how mathematicians and physicists differ in their interests and customs. He argues physics rests on visualizing and applying math rather than pure abstraction.

A 1983 interview clip in which David Bowie questions MTV VJ Mark Goodman about why the channel played so few videos by black artists.

A short clip of Richard Feynman answering an interviewer's question about why magnets repel, explaining that a 'why' question depends on a shared framework of understanding. It illustrates how hard it is to explain fundamentals to a layperson.

A short clip of Bill Gates appearing on David Letterman's show in 1995 trying to explain the value of the internet. Letterman is visibly unconvinced.

A TED interview in which Chris Anderson talks with Jim Simons about his life: code-breaking, math, founding Renaissance Technologies, and his philanthropy in math education and origins-of-life research.

An excerpt of a C-SPAN interview in which Thomas Sowell argues that preferential admission policies produce mismatch, dropouts and resentment.

A short Channel NewsAsia interview clip in which MasterCard's Southeast Asia president voices distrust of cryptocurrencies produced by anonymous computers in anonymous places. It is part of the Perspectives series and runs about four minutes.

A 1983 BBC interview in which Richard Feynman is asked how magnets work and explains why 'why' questions are hard to answer in everyday terms. He reflects on what counts as an explanation and the limits of analogy.

An excerpt of Simon Sinek on Inside Quest discussing millennials in the workplace. He covers parenting, technology, social media dopamine and what that means for managers.

Rhonda Patrick interviews Salk Institute researcher Satchidananda Panda about circadian rhythms and the timing of food. They cover time-restricted feeding and its links to obesity, muscle mass, heart health, and light exposure.

Alan Kay visits Carnegie Mellon's School of Computer Science in 2007 for an informal conversation with faculty and students. He discusses the state of CS education and criticizes mainstream computing.

A dialogue with Gary Weber on the default mode network, meditation and non-dual awakening, with discussion of psychedelics, thought and time. It is part of the Non-Dual Couch series.

A VICE interview with Martin Shkreli about the 5000 percent price hike on a drug for AIDS-related infections and his role as the world's villain.

YC partner Michael Seibel discusses his essay on real product-market fit, why founders wrongly believe they have it, and how building a company is not a single-variable problem, drawing on Justin.tv and Socialcam.

Pierre Sprey, a designer of the F-16 and A-10, explains why he thinks the F-35 will not hold up on the modern battlefield. It is part one of a series of F-35 critique videos.

Freeman Dyson recounts how Enrico Fermi rejected his team's meson scattering model, noting that it had too many free parameters. It is the source of the quote about fitting an elephant.

A 1956 episode clip of the game show I've Got a Secret in which 95-year-old Samuel J. Seymour appears as the mystery guest. He was the last living eyewitness to Lincoln's assassination at Ford's Theater, and the panel tries to guess his secret.

A clip from a BBC interview in which Richard Feynman is asked why magnets repel and attract. He explains that "why" questions depend on what a person already accepts as fundamental.

A 1967 CBC clip in which Hunter S. Thompson faces a member of the Hell's Angels on television. The studio audience's reactions are a striking window into the era.

Peter Norvig answers the top questions submitted by reddit users in a 27-minute interview. Topics include programming language choice, AI, and workplace design.

An interview with Nick Bostrom at Oxford's Future of Humanity Institute presenting his simulation argument: at least one of three propositions about posthuman civilizations and ancestor simulations must be true.

Lex Fridman interviews Jeff Hawkins, founder of Numenta and author of On Intelligence, about the Thousand Brains Theory and reverse-engineering the neocortex. They also cover Hierarchical Temporal Memory and brain-inspired AI architectures.

The Real News Network interview between Aaron Mate and Guardian reporter Luke Harding about Russiagate and Harding's book on alleged Russian collusion.

Kevin Rose interviews Chris Sacca, founder of Lowercase Capital, for his Foundation series. The conversation covers Sacca's path in venture capital and angel investing, including his early financial ups and downs.

A clip of a 1984 interview with KGB defector Yuri Bezmenov describing Soviet ideological subversion and demoralization of a target society, uploaded with a politically charged framing.

A June 1986 CNN interview with physicist Richard Feynman about the Challenger disaster and the management failures he found while serving on the investigating commission.

A long interview with former KGB agent Yuri Bezmenov describing what he calls ideological subversion, a process of demoralizing a nation. He claims it works by influencing academia and media over years.

John Conway talks in a short Numberphile interview about his mixed feelings toward the Game of Life, his most famous invention. He says he is not especially pleased that it overshadowed his other work.

In a CNBC interview with Becky Quick, Warren Buffett explains why he sees bitcoin as an asset that produces nothing. He contrasts it with productive assets such as a farm.

A three-minute clip of Noam Chomsky in an exchange with BBC journalist Andrew Marr about media filtering and self-censorship. Chomsky argues that people reach positions precisely because they would not say things that conflict with the system.

An extended Fifth Estate interview with Pierre Sprey, designer of the A-10 and a key figure behind the F-16, arguing the F-35 is an over-engineered, expensive failure.

A two-minute clip from a 1979 Phil Donahue interview in which Milton Friedman makes the free-market case for taxing pollution. He treats pollution as an externality that can be given a price.