I am a biologist with a very limited physics background, but I was standing in my kitchen today and it occurred to me to wonder if time is flowing toward equilibrium with itself. It seems like an idiotic idea because that would imply that time can occur in differing concentrations.
I tried to google it, but any search that has "time," "flow," and "equilibrium" is cluttered with a million irrelevant things, and it sounds like there are people here with a higher concentration of physics knowledge than I. (Luckily your own expertise concentrations will not deplete if some of it flows my way, even though it will require an expenditure of energy, for which I thank you in advance.)
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