News for hackers. Stuff that matters.

A comment on Physicists Debate Hawking’s Idea That the Universe Had No Beginning. Parent comment

Re:Physicists Debate Hawking’s Idea That the Universe Had No... by newsoul2019 on Thursday June 06, 2019 @03:17PM (#20118054)
Is there a theory that the beginning and the ending of the universe are directly connected to each other? And that time doesn't so much start over and return to the starting point on a circle, so to speak?
[ Parent | on HN ]
Re:Physicists Debate Hawking’s Idea That the Universe Had No... by heimdall on Thursday June 06, 2019 @03:39PM (#20118264)
The Big Bounce! https://en.wikipedia.org/wiki/Big_Bounce

To me it's more satisfying than the idea of https://en.wikipedia.org/wiki/Heat_death_of_the_universe

[ Parent | on HN ]
Re:Physicists Debate Hawking’s Idea That the Universe Had No... by selestify on Thursday June 06, 2019 @05:10PM (#20119249)
I once heard of the hypothesis that once the last proton decays, the universe will once more be completely uniform in every way. With nothing to distinguish any part of the universe from any other part, space becomes meaningless and the universe has once more entered a state of nothingness much like how it was "before" the Big Bang.

So, in a sense, the heat death is not so different from the big bounce.

Unfortunately I did not bother to bookmark what I had read, and can no longer find a name or anything referring to it on the internet.

[ Parent | on HN ]
Re:Physicists Debate Hawking’s Idea That the Universe Had No... by aoner on Thursday June 06, 2019 @07:00PM (#20120054)
There is a great mini documentary made that tries to answer this question https://m.youtube.com/watch?v=uD4izuDMUQA
[ Parent | on HN ]
Re:Physicists Debate Hawking’s Idea That the Universe Had No... by marton78 on Thursday June 06, 2019 @05:49PM (#20119580)
You and your parent should definitely read Asimov's short story "The last question", if you haven't yet. Just Google for it.
[ Parent | on HN ]
Re:Physicists Debate Hawking’s Idea That the Universe Had No... by mehrdadn on Thursday June 06, 2019 @06:01PM (#20119667)
"You and your parent" definitely confused me for a second!
[ Parent | on HN ]
Re:Physicists Debate Hawking’s Idea That the Universe Had No... by philipov on Thursday June 06, 2019 @04:38PM (#20118902)
Roger Penrose believes in a model he calls Conformal Cyclic Cosmology. He doesn't believe in Cosmic Inflation, and instead proposes that the accelerating expansion of our present universe forms the inflationary period of the next universe. He gets around the second law of thermodynamics by saying that the difference between the two universes is a redefinition of entropy. The mapping between the two different definitions of entropy makes our maximal entropy state look like a minimal entropy state in the new universe.
[ Parent | on HN ]