[some_other_time]

This reminds me of something I read some time back. It was about hypervelocity stars, stars with escape velocity. These are stars that are moving fast enough to escape the gravitational pull of their galaxy. If they are escaping their galaxy and moving away from the galactic center, they may also be beyond the pull of any retraction. This, in turn, would mean the subsequent post-retraction Big Bang contains less matter than the prior one. Over an infinity of time and thus an infinity of these cycles, there would eventually be too little matter to go bang at all.

So, after that happens, we're back to the originating questions. From where did sufficient matter originate to go bang? And, how did that bang not violate the laws of motion?

To throw a match on this pile: To me, this seems to be science asserting the existence of God. ;)

[troops_h8r]

Ah but then you'd have to explain how God started, and the problem is that whatever explanation you concoct here might as well be used to explain the very thing you invoked God to explain in the first place

[zamalek]

Spacetime itself is not limited to slower than light speeds, and the big crunch has nothing to do with gravity. Rogue stars wouldn't escape it.

The universe is not finitely/countably infinite. From the perspective of everything inside it, it is truly infinite. You can't escape something that goes on forever.

[CuriouslyC]

> The universe is not finitely/countably infinite

If you're saying the universe is infinite in any way, I'm going to need some proof.

[ivan_gammel]

Escaped matter is somewhere else: it would do the Bang and expand into the less populated area. All you need is to assume that on a bigger scale the universe is uniform and all the Bangs are just the ripples in it.

[Chris2048]

hypervelocity stars only escape their galaxies. I'd assume to escape the big-bang they would need to escape the "universe" aka most of the matter in the universe.