alt Hacker NewsWe know empirically that time only flows in one direction, it can’t be described as just a perception. You’d have had at least the tiniest of evidence that time sometimes flows backwards.
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How would you measure time going backwards if you can only perceive it going forwards? How can you "experience" everything around you going "backwards" if that includes your memory? How can you determine that a specific moment in time was arrived at by time going forward, or by going backwards?
How do you know anything outside of your perception is true? All things boil down to a philosophical argument. The simplest answer is that "time" as we imagine it is a product of our interpretation and the true nature of "it" is hidden from us.
> flows in one direction
_Everything_ flows in one direction, all particles goes in a straight line from their self reference, fields "modifying direction" is just an observer point of view. The separation of time and space is purely a perception matter.
A gross comparison would be to compare with objects perception, it only exists because our mind can leverage it for a strong evolutional advantage (I'm not only speaking of humans here).
What if it's circular, or cyclical?
We don't know empirically what came before the beginning.
Time doesn't flow at a speed. So, time flows at no speed, so, time doesn't flow. Time doesn't exist within time, so it has to be static. Moments don't change.