(February 11, 2018 at 1:26 am)Tizheruk Wrote: Why do we always speak of eternally going back instead of eternally going forward or the notion of time going in two separate directions at the same time .
About the perceived directionality of time, Sean Carroll says this intuition has something to do with the universe starting at low entropy. As far as the laws of physics themselves are concerned, time can move both ways. There is nothing in the formulas and equations that say otherwise. But because the universe is structured in a way where low entropy is at the start and then increases, we're conditioned to see time as flowing in one direction.
I don't know the specifics, by the way. So perhaps polymath can provide more elaborate input on this, unless he happens to disagree with Sean Carroll, of course.
