History of Science and Technology Q&A for Kids and Others (December 1, 2021)

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?