(January 19, 2010 at 1:55 pm)Tiberius Wrote: The explanation was why the universe isn't infinitely sized. If something is expanding, it can't be infinitely sized. That was all my point was about.An opportunity to disagree again!
As confirmed by the WMAP probe the universe is generally believed to be flat. Flat in the sense of a 2D analogon. If the universe is infinite, then it should appear flat. But with a flat universe there are still two possibilities, infinite or finite. This is hard to get your head round, I know. But something that is infinite can indeed expand. The expansion of space itself is not dependent on the finiteness of the universe.
There could be reasons why the universe appears flat and yet is not infinite. And of course, it could be that it appears flat because it is infinite. We have no definite proof.
"I'm like a rabbit suddenly trapped, in the blinding headlights of vacuous crap" - Tim Minchin in "Storm"
Christianity is perfect bullshit, christians are not - Purple Rabbit, honouring CS Lewis
Faith is illogical - fr0d0
Christianity is perfect bullshit, christians are not - Purple Rabbit, honouring CS Lewis
Faith is illogical - fr0d0