I understand that there may be no limit, but currently we're at about 156 Bn lY I think...The universe is infinitely expanding. That is what i claim, and that spacetime is therefore infinite according to all models of astrophysics. There may be no limit to expansion. You do understand this?
Why do people say "I was dead on my feet today"? Are they really dead?And it is considered, since there is presently no stop to expansion, that spacetime is an ifninite void. Why do you think people say, often, ''spacetime is infinite in volume.''?
Even if there is no stop to the expansion we haven't expanded that far yet.
Specious question.What is infinity?
So what: we are not at infinity yet and may never get there.The best way to describe infinity, is that it is always one more than any absolute count.