In a universe where the spatial expansion is accelerating, that cosmological horizon would actually have a temperature. From that spot, we would have heat emerging that would give a background temperature of about 10 to minus 30 Kelvin. And if it's a case that that cogitating being can't release its heat, it will burn up. So one of the things I describe in the book is that in the far future, any kind of- That's where the book ends and thought ends.
Neil deGrasse Tyson, comic co-host Chuck Nice, and theoretical physicist and author Brian Greene answer questions from our fans about string theory, the fabric of spacetime, interstellar travel, free will, and the meaning of life.
NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here: https://startalkmedia.com/show/cosmic-queries-until-the-end-of-time-with-brian-greene-re-release/
Thanks to our Patrons Jamie Boneleye, Evan Blackburn, Matthew Pounsett, Chris Behrensmeyer, and Brett Armstrong for supporting us this week.
Image Credit: ESO/IDA/Danish 1.5 m/R.Gendler and J.-E. Ovaldsen.
Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to new episodes ad-free and a whole week early.