Question

why do we move forward in time? ​

Answer 1

Answer:

Entropy always increases, because it's much easier for things to be untidy. ... Boltzmann's take on entropy explains why it always increases. That in turn suggests why we always experience time moving forwards. If the universe as a whole moves from low entropy to high entropy, then we should never see events go in reverse.

Answer 2

The time conundrum stems from the fact that, while time only moves forward on the IRL scale, when you look at individual atoms and molecules, it doesn't much matter to them whether time is moving forwards or backwards - they seem to behave the same way regardless of the direction time's arrow is pointing.