Got this in an email, thought it was interesting.

[gubi-gubi]

(on earth)

Exactly. The big bang didn't happen on Earth and Earth didn't exist then so the laws just don't apply. Just as the law 'what goes up must come down' doesn't apply in space.

I read somewhere though that a new theory exists that universe's existed before ours and that ours was created as a result of a colision of two other universes floating around a sea of nothingness. That could technically mean alternate realites could be existing along side us in a place we can't access or understand... Still doesn't answer where the hell they came from though... Still it's fun to think about :p