(February 23, 2018 at 6:57 pm)Jehanne Wrote:(February 23, 2018 at 6:50 pm)polymath257 Wrote: And in a flat spacetime, which is what seems to be the case, space is infinite in extent.
And yes, it is the case that expansion can happen with finite space. You are correct here.
My point is that expansion can also happen with (and, within) infinite space. And, if the Universe is infinite in spatial extent, that does not change the fact that there is a finite distance between any two points. Ditto for a beginningless Universe with respect to time!
Agreed.