Quote Originally Posted by xman View Post
Just because the universe is expanding doesn't mean that everything is heading in the same direction. It just means that whatever direction things are heading in, the universe is expanding too. Andromeda galaxy for example is headed our way and we could collide ... head on!

Think of the flaw in your argument like this:
I've got a grenade. Now the atoms in this grenade and in our bodies represent galactic matter. To represent the expansion of the universe. When I pull the pin, you and I are gonna walk one baby step per second backwards. By your logic, neither of us will get hurt by shrapnel.
No.

According to the Big Bang, you, me and the shrapnel all came from the hand grenade. And so if we are all flying outwards, how are we going to collide?