Time is nothing more than another dimension. If you swapped the number of dimensions in space and time the physics of the universe would remain exactly the same. It is a special one, but interestingly, this reason for it
>>7620266is wrong. Increasing entropy is not a law. It's a statistical tendency. One way you think about entropy is thinking of a collection of areas, and we call each area a "state," and the sizes of these areas correspond to how ordered or disordered they are. You're more likely to go from a smaller area to a bigger one (entropy increasing) but you're also more likely to start off in a big one in the first place, and in that case, do you really expect that entropy would increase? The reason we perceive entropy to increase is because the universe begins with low entropy, but in general, entropy should not change if we had infinite time to observe it. So there's no a priori reason that this should define time at all. If you don't believe me on that last one, cf. Poincare's recurrence theorem.
