Science, space & health

Repeatedly called the best way to understand ADHD, and recommended to anyone before commenting on it.

HN commenters repeatedly recommend it as the talk that finally made quantum mechanics click, especially for programmers.

HN returns to it repeatedly as the best single introduction to understanding clinical depression.

The most-linked YouTube video on HN, recommended as an in-depth explanation of fructose metabolism.

HN regularly calls it mind-blowing and recommends it as an introduction to Levin's work on bioelectricity and regeneration.

HN people recommend it as a stunning, mind-bending and existentially humbling view of deep time, and it appears on lists of favorite YouTube videos.

HN strongly recommends it as the clearest, best-illustrated explanation of the solar gravitational lens idea, and links it whenever exoplanet imaging comes up.

HN repeatedly cites it as an elegant, eye-opening explanation of fire and photosynthesis and as an example of Feynman's infectious love of knowledge.