Is Space Time Different From Space?

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: What is the history of black holes discovery? - Is gravitoelectromagnetism sufficient to get black holes with event horizon or do you need the full GR framework to get them? - Ernst Mach has a great book on history of mechanics (reading at the moment). The whole development of General relativity is very German until like Hawking and Chandrasekhar. ​Did you ever meet Stephen Hawking or Chandrasekhar? - Is there an instance or phenomenon where an instrument uses a theory to test or advance that theory... is there a something like Godels incompleteness theory that applies to the instruments in physics? - What is the history of UFO observations? - There was a new physics announcement from CERN this week. something about a new kind of force. did you catch it Stephen? "The LHCb results strengthen hints of a violation of lepton flavour universality"