Quote by Tanelorn
Marcus, my problem with a universe which is much bigger than our observable universe, but still finite, is that at some point homogeneity and Isotropy would have to be violated?

This shouldnt be a problem. For example if U was embedded in a higher nsphere, this would be a finite topolgy which still adhered to the cosmological principal of homogeneity.
The two viewpoints are not oncompatable.