It seems to be generally assumed that the universe is infinite, in both the macro and the micro (which I wont argue with for the purpose of this post, yet i've heard estimates of the "size" of the universe which seem irrelivant if its "inifinate") So, if the universe is infinite..... er... uh... how can it be "expanding" ? If it already "goes on forever" then its already "infinite" and would have no were else to go right? I guess , as usual its a conceptual problem on my part trying to get my mind around the overall "idea" of it, expanding rasin-muffins rising in the oven analogies never seemed to help. I remember sitting in physics lectures , having just sat through a 2 hour E-M specturm lecture and at the end of it thinkg yeah ok that was nice but what IS IT exactly?!! heh Please Register or Log in to view the hidden image!