Everything moves from hot to cold in the universe. It is a process we share with the universe. It is the Universe moving toward entropy. So what is reverse entropy? It is something that should not be allowed in the Universe we know. And yet, there is a concept, and so there is a probable reality attached to it. Reverse entropy might include things moving from cold to hot. There is your dark energy, and dark matter. It looks and acts like a soup vapor does it not? The real question would be, what is doing the heating. The answer is, according to Eastern observations, is: us.