Interview with Witten. "Do you have any ideas about the meaning of existence?" "No." But he's puzzled by the nature of quantum spacetime: "I suspect that there’s an extra layer of abstractness compared to what we’re used to." Read the whole thing: https://t.co/FtLgvw8zfn pic.twitter.com/cha5ORJ7tG
— John Carlos Baez (@johncarlosbaez) November 28, 2017