Thread: Space cannot be infinite

Originally Posted by khh

What exactly do you mean by 'spacetime'?
And what do you mean when you say the Universe is finite? That there's a set amount of energy in it, that cannot be changed? If so I agree with you, but I don't see why spreading this would bring about the End of World.

Spacetime...is spacetime. Look it up. The universe has a definite size, yet it expands. Therefore, there is a set amount of energy and matter in it.


I figured that eventually spacetime would stretch out and become thin enough to rip.

Originally Posted by [SomeGuy]

Spacetime...is spacetime. Look it up. The universe has a definite size, yet it expands. Therefore, there is a set amount of energy and matter in it.

I figured that eventually spacetime would stretch out and become thin enough to rip.

*Wikipedia* Ah, that. Why didn't I just do that to begin with >.<
I don't really imagine that as something finite. I mean, it's basically just matter itself. Barring black holes, all mass has space, and where there's mass and space, there's time. It's kind of a concept more than a, er, thing, isn't it?