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

Questions include: Are you familiar with Knot Theory? Apparently former NASA Physicist Thad Roberts derived charge of the electron from the hyperbolic figure 8 knot. He recommended using Mathematica to verify. -  Why does computer code involve math? Why isn't it just a set of linear instructions that sometimes hop around, like a choose your own adventure book? - What type of computer logic is most efficient (binary, ternary,...)? - I hear that all Boolean functions can be constructed from only NAND. Is this true of any other simple Boolean function? - Why does NAND realize NAND? -why are we only considering first order derivatives of position (velocity) and 2nd order (acceleration)? Why are higher order derivatives not relative apparently? - ​what is derivative of acceleration called? - Do you think emotions will emerge out of intelligence... if computer scientists continue to make general AI...do you think the more 'general' or 'intelligent' it gets the more 'emotional' it will get?