lets say we have a ball with no air in it, so it is no bigger than a dot. now we attach a pump to it that pumps air into this very elastic ball at a relativistic speed. 1) there are an infinite number of 2-dimensional universes within the ball. all of them are of course at some radial distance from the singularity. but the singularity is not actually a part of any of these 2-dimensional universes. 2) an observer on a surface sees himself as being in the middle of his universe. 3) his universe is expanding at unbelievable rates. 4) he measures his universe to have no edges. 5) he has no concept of the 3rd dimension of volume, as he is a flatlander, and only sees in 2 dimensions. does this not have some eerie similarities to our own situation ? now what sort of 4th dimension do an infinite number of spheres fit into ? i have no more chance of visualizing that geometry than the flatlanders have of visualizing a sphere. but it makes me wonder. one thing i agree with qm - i suspect that the totality of it all is stranger than we can even ponder about.