important problems

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 20-minute Y Combinator interview in which Sam Altman asks Elon Musk how to build the future. Topics include which problems a 22-year-old should work on, such as AI, genetics, and brain interfaces, and general advice for founders.

Giant Bomb interviews John Carmack at E3 2012 about his virtual reality head-mounted display prototype. He demos it and talks about latency, depth and focus problems in VR.

Westwood Studios co-founder Louis Castle talks about how pathfinding was solved in Command & Conquer: Tiberian Sun, in an Ars Technica War Stories episode. It also touches on other challenges in Westwood's RTS games.

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.

A Computer History Museum interview in which John Markoff of the New York Times talks with Douglas Engelbart about his life and research. It covers the influences and struggles behind his work on the mouse, hypertext and collaborative computing, and his aim of helping humanity tackle complex problems.

A clip from Lex Fridman's podcast in which chip architect Jim Keller argues that Moore's Law is not dead and that transistor scaling still has lots of room. He also discusses how to break down hard problems.

Reddit co-founder Alexis Ohanian responds in a short interview to Anderson Cooper's on-air criticism of Reddit over child exploitation content.