The future is the higher-entropy direction

The thermodynamic arrow of time — why we remember the past and not the future — is the universe’s low-entropy beginning plus the second law.

Microscopic physics is almost time-symmetric. Drop a glass, and the shards do not leap back into a goblet. Boltzmann saw that the difference is statistical: there are more ways to be broken than whole. A system wanders toward the larger set.

That only explains why entropy rises from a low value. It does not explain why the value was low. The remaining fact is cosmological: the early universe was extraordinarily smooth, a low-entropy state. We live on the slope down from that initial condition.

Memory, cause, and agency ride that slope. A record exists because a past was more ordered and left traces. This is not mysticism. It is the second law pointed at history.