Found in 2 comments on Hacker News
microtherion · 2018-10-25 · Original thread
And James Gleick's biography of Feynman, "Genius", goes in considerable detail on this aspect: https://www.amazon.com/Genius-Life-Science-Richard-Feynman-e...
tokenadult · 2011-04-03 · Original thread
Gleick is also the author of a very interesting biography of Richard Feynman, the book Genius.

http://www.amazon.com/Genius-Life-Science-Richard-Feynman/dp...

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