About this episode

Stephen Wolfram answers general questions about science and technology in an unscripted livestream.

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 Topics: Why perpetual motion machines fail - What might be driving the universe's expansion - How particles emerge from the structure of space - Entropy and the Big Bang theory - How temperature can become negative

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