[Tim_Lou]

if everything in the universe went together due to gravity and become back to a point when the universe just get started, than all energy and mass would be the same and everything would be the same.

then the universe would go into the big bang process again and since everything is the same, everything would become the same. (mass and energy would not be gone, so, it would be the same as the past)

what i mean is that the same earth would form and the same people will born and people would make the same decision due to the exact same facts, the history would be the same and the unverse would repeat again and again and forever!!!!

am i right or??? i wanna know what you guys think.

[Lord Henry Wotton]

Do you believe in randominity? Are you a determinist?

[Tormod]

Tim, I think there is not a chance in the world that the universe would emerge the exact way twice.

What we observe in the background radiation today is (among other things) tiny differences in the diffusion of matter. It is believed that this is what caused the initial star clusters and galaxies to emerge. The distribution of matter is most likely random. When you view the initial state (ie, the situation right after the Big Bang) with all of the trillions of trillions of interactions that have caused the Universe we see today, I think the possibility for a repeat occasion is zero.

Tormod

[Tim_Lou]

i think nothing is really random, everything has got a reason to it. its just too much to determine and too much to consider, so people view something as random.

since matter and energy is never gone, so that the point would have same amout of matter + energy.

i come up with a new idea. in some sort of decay, matter and energy is converted to each other. maybe the % of matter and energy would change... i might not be so same.......

[Tormod]

And what would this reason be?

Tormod

[Roberto]

As far as we know, things happen really randomically at subatomic level. The laws of quantum mechanics are probabilistic by principle and there is no known theory with hidden variables that reproduces the same results as QM.