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: What happens if you fall into the ocean from a great height? From what I have read, it's like hitting concrete. Can you explain the science behind this? - ​Dr. Wolfram, can you explain the origin of white trail from jets at high altitude. Thank you. - If we rubbed mineral oil/baby oil on us would we move faster in the water? -  How long would we survive if the earth left the suns orbit going away from the sun? - Could everything that gets sucked into all black holes everywhere in the universe go to the same place? - Do black holes rotate? Can they distort the time-space around them? - What is the reason for the distribution of matter and antimatter throughout the universe, why is there much less antimatter?