--Real Pinkamena Pie--
somebody watches way too much sci fi @ w @
Blame my astrophysics and cosmology coursework, not popular fiction that often gets cosmology wrong.
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isn't this about beliefs?
Yes, but putting forward beliefs and acting like they have some sort of backing is different than just putting forward a belief.
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I believe in an ultimate void. all things come from the void, and all things will return. it's simple logic.
It is not really simple logic when there is no reason to begin with such a basis except an inherent misunderstanding of what is being discussed.
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Reality and physics and all natural laws tell us that something being created from nothing is impossible. but it did. so reality has no basis in contemplating the beginning and end of the universe, with the exception of probability, probability is almost always relevant.
Except that you are making unfounded assumptions here. No where does the big bang theory, or any physical theory, state that something actually comes from nothing. There is no reason for the big bang theory to be required to produce something from nothing seeing as it describes the expansion of the universe after all the stuff existed, not where any of the stuff came from.
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if things are created forever, eventually something unheard of will be created. there is a 100% chance, because it would literally have forever to do so. an unlimited amount of things that do not currently "exist" will be created.
Except statistical mechanics tells us this is wrong.
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in addition, there is a 100% chance that one of these things will be the end. something that throws the constant-creation cycle out of whack.
Except there is no observational basis for a constant cycle.
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when there is an eternity of continuous random events, which is essentially what we're talking about, there is a 100% chance that everything will happen. everything. pigs will fly, humans will hatch from eggs, a man walking to the bus will spontaneously combust without any reason whatsoever, live through it, and then be crushed by a winged hippo-elephant that spawned at random directly above his head.
everything is possible. everything will happen, until nothing happens.
Except that there is not an infinite amount of time [well, there is, but the amount of time in which meaningful things can happen is finite]. By the laws of thermodynamics and statistical mechanics, which really all boil down to this infallible probability thing you are talking about, all large scale structure in the universe has a finite lifetime. And the reason for this is because creation from nothing does not happen. The universe's density is fixed; it is flat and without some source of new matter, that is not going to change.
--Real Pinkamena Pie--
Assuming that the universe is always expanding and creating things out of nothing, like you suggested.
Nothing is being created by the expansion of the universe. The expansion is caused by the amount of space between objects getting larger. The effects are not seen on the scales of the local supercluster because the gravitational binding between the galaxies is strong enough to overcome the expansion, but get outside of this region and the expansion is visible by the redshift of the hydrogen spectrum [I can't recall if it is absorption lines or emission lines, but given the amount of dust out there, I would probably go with absorption]. No where is new stuff being created. What is happening is that stuff that exists is getting carried farther away from each other.
Now, how can the density of the universe be fixed then? There are several topologies that allow for it, but I am not knowledgeable enough about them to really discuss it.
