We know that something can come from nothing.
who said that? its a violation of belief to most people here and there (esp on sensitive and unproven matters). maybe your term is not that accurate. more accurate term in my opinion is.... We know that something can come from "something that is not yet known"
I think we all know what he meant: it's impossible for an ordinary human (what ever resources they have access to) to create something out of nothing, whether it be energy or mass. It's not possible to magic objects or energy out of nothing and if you're trying to bring religion into this then GTFO; don't wreck the thread!
A closed system will always reach an equilibrium and slow to a stop: entropy always increases.
On a very small scale, things may seem to go against the second law of thermodynamics, for very short periods of time but on a larger scale, over a longer period of time, entropy always increases. For example, take a chamber filled with a gas, at a constant temperature and pressure, the molecules will be moving around at random. If you zoom in, it may appear as though it's perpetual motion, since the particles are moving around continuously and aren't slowing down, but when you zoom out, the average speed of the gas is zero so it isn't possible to extract any work from the system.
[RL: I added bold to some text in the reply]
re:
"A closed system will always reach an equilibrium and slow to a stop: entropy always increases."Our understanding today is that beyond the event horizon, stuff inside black hole has no influence in this universe other than gravity. So, it is attractive to think of "dumping entropy increase" into the black hole. Is it theoretically sound? I am not sure enough research has been done yet to say yes or no.
re:
"On a very small scale, things may seem to go against the second law of thermodynamics, for very short periods of time but on a larger scale, over a longer period of time, entropy always increases."Leveraging these "leaks" in the physical laws, and coupled with using black hole as dumping ground is exactly how we can
in theory create energy out of nothing.
That it is broken for split-split-split second can be shown in simple math if you accept some basic physics assumptions: If
+Energy occur
here, for
-Energy to occur
elsewhere takes time. It takes
(distance/c) for -E place to "know" a +E occurred. So for the duration of
(distance/c), we are borrowing energy or loaning it out. Except of course
if Entangled Particles can transfer info faster than c, we may no longer have a loan period. That is why Entangled Particles got into my earlier rely. It may seem like a side track but it was not.
These law can be broken for a trillionth of a trillionth of a femtoSecond - at least Quantum Mechanics said so and Heisenberg's Uncertainty Principle agrees. So, can we stretch the time out? Time at Planck's scale is at best ill-defined anyhow.
If "big bang" is right, that "randomly occurring kernel of energy" was expanded beyond collapse during the (two or more) "inflation" phases. Since big bang can extend the "energy loan" and scale via naturally event, extending
artificially is
theoretically possible.
That the universe has a zero-sum energy is a hypothesis for convenience - to make our physical laws more congruent. We don't know that for a fact and we don't even have any supporting evident - just the gut feel that it should be. "Create a universe to experiment on" is hardly feasible so we may never know.
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