universe question lol

OperaDad
Sun, 15 Mar 2009 06:32:52 +0000

There is “boundary” and there is “boundary”. There is no physical “edge” where you can’t go past, but I think there is an “edge” where, past that, nothing has yet occupied.

Then again, that is my non-astrophysicist view. I haven’t quite got the concept of the big bang not originating from a “point” like water flows from a faucet. Supposedly, the universe is more like the surface of a balloon in terms of expansion. We exist on the surface of the balloon (so what is in the middle?). So what implications that has on “boundary”, I have no idea. When Smallz3141 says “you can never fall off the sphere”, that is true if you are limited to living on the surface of the sphere. But, if you somehow manage to get off the surface, you can fall off.