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Particle pairs seem to arise from space-time, and they can because the total energy of the pair is still zero. I'm guessing that larger sets of particles could emerge too, but would be increasingly less likely, since the odds are multiplied with every additional pair. The odds that a God could appear fully formed with the capacity to pre-conceive the plan of the entire universe is so extremely unlikely we can dismiss it.
But, the idea that a tiny universe could appear is more likely. Matter is balanced by gravitational potential energy, meaning the universe needed no net inputs of energy to form. If God has no gravitational potential energy, or even matter, then physics don't apply, and the notion can be dismissed.
So, an uncaused simple thing is more likely than an uncaused complex thing. We observe that complexity is a function of time. Simple things complexify given only the fact that they cool and can form more complex arrangements without splitting apart by heat.
I agree, I'm not also denying the possibility, or something that can appear from nothing, but i find it unlikely.
The total energy is zero, doesn't mean no energy at all, since the (+) and (-) are equal, like in a stable atome.
The thing you said about the developement from simple things to complexed things by the factor of time, but such thing isnt so simple as it is.
If you say quantyms can appear by themselves, and make no difference sicne the total of their energy is still zero, then how can they do anything? inless you say quantums will form the electrons and the protons and neutrons will somehow appear, that still need the factor of time after all.
The possibiliy of something from nothing, isnt totally possible, but we need tome for that, I think, right?
And later, we defferently need physic laws to orgenise things and get a guarentede results, no physic laws means, just some flying "things" hanging around.
Still i'm not denying that something may appear from nothing, but I can't understand this one, I mean, the quantum and etc.. it's not convincing.
There must be a starting point somewhere, before the bigbang.. (or before the universe cycle, if we suppose that the universe have cycles, expand, and then shrink and become as it was before the big bang, then another big bang, and expand, and so on, still there must be a starting point)
The word infinite is not litterly infinite, it's just a very very big number, or a word to hide what we don't know or we couldnt udnerstand, like saying the universe is infinite with no limite, maybe it is, but it also may have a some kinfd of a limit, that kidna "infinite" due to time relativity or something...
Many theories can be posed here.