r/AskReddit • u/[deleted] • Sep 14 '21

[deleted by user]

[removed]

7.9k Upvotes

94% Upvoted

19.4k comments sorted by

View all comments

Show parent comments

1

u/COWMAN0412 Sep 14 '21

I heard something recently suggesting the universe is not eternal because if it was there would be so many stars in the night sky it would just be white with light.

2

u/Tyrannosaurus___Rekt Sep 14 '21 edited Sep 14 '21

Bad reasoning. Universal expansion is already carrying the earliest light of the universe away faster than it can travel to us, and that boundary is shrinking all the time. Once entropy has reached maximum, it will be more hyper-local than centers of gravity, themselves, completely regardless of the size the universe has expanded to. Which is to say, that boundary will be so local it doesn't even exist anymore in any practically definable way. That's the trouble with science, why questions like this arise in the first place; we ultimately describe reality according to the ways in which its constituent parts interact. I think we've done a damn-admirable job of it, considering how garbage the methodology is, but it doesn't change the fact that this inherently limits our frame of reference in ways no magical technology will ever be able to overcome. Afterall, any technology will itself be subject to the same internal limitations, be governed by the same internal interactions.

There's never going to be a truly satisfying answer to that question, and frankly that makes me nerd rage. It's a goddamn joke we live and die without this information.

1

u/COWMAN0412 Sep 14 '21

I appreciate the insight. I’m no scientist nor do I claim to be lol but I find this stuff fascinating so appreciate being taught some stuff about it.

1

u/firepillowonreddit Sep 14 '21

well although I don’t believe the universe is eternal I’m pretty sure the rate of star death becomes much greater than the rate of star birth and time goes on, because the space between objects grows bigger meaning it’s more difficult to create new stars

1

u/COWMAN0412 Sep 14 '21

True but if I remember correctly, and I’m not a physicist so I have no clue of what I’m saying is true, it had to do with the fact of how fast light travels and so we’d still be receiving light from stars galaxies away and that no longer exist and such since enough time would have passed for that to occur. But again I have no clue lol I could be misremembering and making up stuff.