Ah, the classic "something can not come out of nothing" argument.Arduin wrote:First law of thermodynamics.Fizz wrote: Rubbish. What holes? What physical laws does it break?
Your turn. Explain.
First, you need to understand Quantum Field Theory. Things can in fact appear from nothing via vacuum fluctuations. For example, a positron and an electron can appear simultaneously from nothing out of the vacuum. Most often, they then recollide and annihilate one another, but not always. No violations of mass/energy or charge exist here. Look up the Casimir effect for experimental evidence of it.
Secondly, since time before the Big Bang is not definable, we can't even know whether the First Law would apply. Time was created at the Big Bang, so to talk of the 1st Law of Thermodynamics (which requires time) before the Big Bang is meaningless.
Third, if you could define an energy before the Big Bang, then you don't have a problem so long as the total energy before and after the Big Bang is consistent. What might that be? One might guess 0 (no universe, no energy). Well, in fact cosmological evidence theorizes that total energy of the universe is in fact exactly 0. So you can't even say whether the 1st Law has been violated.
Fourth, the Big Bang Theory is not about the origin of the universe. It is about the evolution of the universe. We know the Big Bang occurred. We don't yet know why. Actually, string theory (more generally M-theory) has some ideas about how such events occur (it involves the collisions of cosmic "branes", which would produce the necessary energy). It's fascinating stuff.
-Fizz