[VadeRetro]

... drop the ball, allowing it to swing away from you (make sure it doesnt touch the ground) then let it swing back. it will never hit your face. why does it not hit your face? because it loses energy traveling away from you. if the laws of physics are the Law of the universe, which would be what you guys are trying to prove, then the bang-crunch cycle MUST end. if there is a definite end, there is a definite begining. thus, God.

Your example isn't a closed system. It's dissipating energy into the room via air resistance and frictional heating.

An oscillating Big-Bang, Big Crunch universe would be a closed system. It doesn't run down. Nothing ever escapes it.

[MacDorcha]

i iterate. what's the universe expanding into? if the universe is indeed expanding, it must be going somewhere. and for what we know, travel requires energy. the further it goes, the less it has to create another reaction. the less energy per reaction, the less distance traveled. etc. etc. until nothing. but this theory that is being presented would seem to create an alternate spark of sorts. this other source would make enough energy to keep the explosion and crunching constant. but that's according to the theories presented.