when the Universe gets cold it means that the Universe is dying cause there isn't enough Entropy — TheQuestion
If the Multiverse theory is proven to be true then that would mean a outside force is funneling energy in our Universe causing a rapid expansion. — TheQuestion
And heat is the motivating factor to cause Entropy to make things. — TheQuestion
How can something become more disorganized if there is more space? — TheQuestion
This was our paradox: no course of action could be determined by a rule, because any course of action can be made out to accord with the rule. — Wittgenstein (rule following paradox)
With a gas in a box, the probability that all the gas molecules are in one corner of the box at the same time is very small (for a typical box full of 1020 molecules or more, incredibly small): this is therefore a low entropy state. It is much more likely that the molecules are randomly distributed around the box, and are moving in random directions; this high disorder state is a considerably higher entropy state. The second law doesn't rule out all the molecules ending up in one corner, but it means it's far more likely that the molecules will be randomly distributed, and to move towards a random distribution from an orderly distribution, as opposed to the other way around.
The expansion of the universe roughly means that mass or matter density decreases over time, matter dilutes, spreads, thins out spatially, apart from what gravity holds together. With entropy, the density tends to "even out".
Yet, despite the spatial expansion, the quantum energy density remains constant, or the average micro-chaos, in lack of a better term, per spatial unit does not change.
So, matter dilutes, energy of space itself does not. It's like space isn't "stretching", but rather ehh "growing", in lack of better verbiage. — jorndoe
If you take this at the quantum level though, and assume the Many Worlds interpretation, there are outcomes where entropy isn't increasing as the universe expands. It seems like you could have a uniform, organized expansion after the Big Bang and thus not have the asymmetry of time. — Count Timothy von Icarus
Cosmic honeymoon creating an offspring which is this Universe. LOL! Sorry Cosmology joke.
But if this is evidence of a multiverse than the first law of thermodynamics is not applicable to a Universe. — TheQuestion
Yet, despite the spatial expansion, the quantum energy density remains constant, or the average micro-chaos, in lack of a better term, per spatial unit does not change. — jorndoe
Shouldn't the second law of thermodynamics be called a "habit" instead of a law? It seems to me to speak of a tendency to disorder, not an iron-clad rule. — Manuel
Shouldn't the second law of thermodynamics be called a "habit" instead of a law? It seems to me to speak of a tendency to disorder, not an iron-clad rule. — Manuel
Hey, if Hooke's law gets to be a law, thermodynamics is a cert! — Kenosha Kid
Right, you could have it, but obviously we don't have it at the macroscopic level, as entropy is observably increasing. — Count Timothy von Icarus
However, given many worlds, the almost infinitely improbable universe of non-increasing entropy is one of the (almost?) infinite worlds and actually exists.
Whereas you as an observer in one world could expand the volume of a container of gas all day for a billion years and not see entropy remain static a single time, because the probability is incredibly low. — Count Timothy von Icarus
Hey, Einstein field equations are basically a glorified Hooke's law — SophistiCat
Yes, it is possible for all the air in your room to spontaneously bunch up in one corner, but you should not take that possibility seriously, on account of its vanishingly low probability. — SophistiCat
Yet another thing to read (Vacuum energy and cosmological evolution). — jorndoe
I don't see how. — Kenosha Kid
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