Stephen Wolfram answers questions from his viewers about the history of science and technology as part of an unscripted livestream series, also available on YouTube here: https://wolfr.am/youtube-sw-qa

Questions include: Who are the most famous Mathematica users you know? - ​What separates the greats (Einstein, Dirac, Newton, etc.) from everyone else? Is there a tip you have for a young physics undergraduate to become a better physicist? - ​I am a physicist which didn't get to do any discrete mathematics in his bachelor degree. I got involved in summer school last year, but because of my lack of technical knowledge I didn't get the most of it. Apart from Mathematica and (hyper)graph theory what would you recommend one should study to get more involved with the project? - When do you look at the story of some technology, how far should you go? I tried to study the story of machine learning and in a sense the first decision tree was 500BC, and even earlier in the bible -​ Is Excel a computational tool? - Who invented Polyominoes? Why where they invented what role did they play in mathematics? - Does knowing calculus allow one to make money in the 18 century? Or get a job?