RE: Actual Infinity in Reality?
February 20, 2018 at 1:15 am
(This post was last modified: February 20, 2018 at 1:24 am by Anomalocaris.)
(February 20, 2018 at 1:03 am)Grandizer Wrote: No to a finite universe expanding into nothing.
Q. How does finite universe expanding into nothing differ from an infinite but non-homogenous universe in which one particular part is expanding?
I think we don’t really know whether our universe is on a cosmological scale truly homogenous or not. I think that for ease of conception, we use a working assumption of homogeneity, but not a fundamental assumption of homogeneity. We might say it is probably reasonably homogenous to a scale significantly larger than the currently observable universe because we detect no discernible edge effects out to the limits of our observation horizon. But I think we really don’t know it is homogenous, and it would actually pose questions of why and how we can’t answer and only dodge if the universe is truly homogenous over such a large distance scale as for there to have been no possible way for two ends of the scale to reach any sort of equilibrium at any time after the Big Bang.
