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ok, try this... tie a ball to a rope, then tie the other end of the rope to the ceiling. back away from under the point were the rope is hanging, and 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.

I'm not a physicist, but I think what you have just "proven" is the existence of air resistance. Our atmosphere is not fictionless.

Although, I'm only a lowly geochemist and it's been many years since physics lab, but that's what I remember.

MacDorcha wrote "ok, try this... 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."

I see that you don't understand how space time works very well. In the space time we occupy now, the second law of thermodynamic holds true. However this is not the case during a crunch. Laws of physics exist because of the way the universe expanded in the first milliseconds of this iteration of the universe. Those laws break down when the universe crunches itself nd the laws are basically thrown out the door.

Also a second reason you are not correct is that energy/matter isnt destroyed it is transformed there is no net lose of energy in the universe because there is no place for that energy to go that is outside our space time. What this means is the universe is basically a giant perpetual motion machine as long as it does not expand so far that it cannot contract again. That is why the shape of the universe and the amount of energy contained in the universe is such an important question.

... 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.

There would be nothing to drive another Big Bang, and nowhere else to go

Who says? It all started spontaneously in the beginning, why couldn't it do it again huh?

ahem...