Talk:Ultimate fate of the Universe

Comment
I think it's confusing to start with the one-to-one shape to fate correspondence of the Friedmann Universes just to contradict that claim in the next sentence... it would be more useful to introduce curvature without any reference to the fate of the universe at first, then elaborate on the Friedmann Universes (i.e., universes filled with matter and curvature alone) and finally state what changes when one throws dark energy into the mix. Do you plan to rewrite that part? Otherwise I'm going to give it a try. --Imaginative username (talk) 15:46, 4 March 2017 (UTC)


 * Feel free to add that if you wish. My plan is (was) just that brief introduction with the meat being what will happen in the future taken from both the article mentioned below and other sources, and finally scientific especulations about life in those very late epochs (yes, there've been ideas about that). --Panzerfaust (talk) 21:14, 4 March 2017 (UTC)


 * My view, the Universe will not end but will experience heat death in about a gogool years after the largest black holes evaporate. I am no scientist, this is what I have learned on TV, Youtube and reading popular science articles.--Mercian (talk) 15:51, 4 March 2017 (UTC)
 * Possible, but we can't exclude the other possibilities. It all depends on the nature of dark energy and the Standard Model of particle physics. A big freeze followed by a heat death (sounds stupid, but those are the names we settled for) is what happens if dark energy is (more or less) a cosmological constant and no quantum vacuum collapse happens. --Imaginative username (talk) 17:25, 4 March 2017 (UTC)
 * For what I've seen here (most of the science there is still up to date, even if there's no mention of dark energy), the conditions after evaporation of black holes are so extreme in terms of low energy state that there's no way to know what will exactly happen. --Panzerfaust (talk) 21:14, 4 March 2017 (UTC)

And the sentient constructs (computers, robots, the internet, 'and things yet to be developed') will be more interested in how long they can survive into the degenerate era (if not beyond) than in Roko's basilisk. 82.44.143.26 (talk) 16:32, 7 March 2017 (UTC)

The ultimate fate of the universe
... involves there being an ultimate point at which there is no entity sentient enough to discuss the fate of the universe. 82.44.143.26 (talk) 15:51, 10 March 2017 (UTC)
 * Yep. Pretty much.RoninMacbeth (talk) 16:00, 10 March 2017 (UTC)
 * At what point in the Degenerate Era will this be (though given sentient ingenuity and 'bolshiness/orneryness' likely to be rather further into the future than might be expected)?

And how will life develop? That on planets may well suffer the fates they always do as stars expand, explode or fade out: in some cases there will be the capacity to develop space going 'arks and stores of information' (possibly by knocking (dwarf) planets out of orbit) - and will these eventually start to 'just slowly disintegrate into nuclear particles' like a snowball melting in the sun? 82.44.143.26 (talk) 16:34, 10 March 2017 (UTC)

It's life, but not as we know it
So how long will 'life' (however defined - organic, construct, cyborg, quantum etc etc) be in a position to survive once 'the particles' start decaying? At what point will the complexity of atomic structures mean that 'complex structures' cannot be sustained?

And the phrase 'hundreds of billions of years, and may last for up to a billion (10to12)...' needs resolving. 82.44.143.26 (talk) 17:10, 14 March 2017 (UTC)

The ultimate fate of the universe
... is to be drowned in papers and web sites/discussions on what is going to happen (half of the communications denouncing other statements by other people on the grounds of (insert snark/snarl words here). 31.51.113.88 (talk) 10:21, 22 June 2017 (UTC)

Brainstar nomination
I propose a silver or at least bronze brainstar for this article it's very long and detailed, with a decent dose of humor. Thoughts? 00:53, 23 January 2018 (UTC)

Fast forward the end of the universe
How much impact will 'mining the last few cryptocurrency-equivalents' entail (one coin = destroying a galaxy, a supercluster (if such still exist in the expanded universe), three super-black holes...)? Anna Livia (talk) 12:06, 18 July 2021 (UTC)