2 ms·
What if time is a a free variable that can freely move forward and backwards, perhaps doing a random walk? The people inside that spacetime (us) couldn't ever
by tasty_freeze 2y ago
What if time is a a free variable that can freely move forward and backwards, perhaps doing a random walk?
The people inside that spacetime (us) couldn't ever tell time changed directions or was going backwards because at any given time "t" the state would consistent with all prior states before t. It would also be consistent with future states of t, but the person at time t can only test for consistency with states prior to the current t, but not future states. To the person it like time is only moving forward.
- yetihehe 2y ago> What if time is a a free variable that can freely move forward and backwards, perhaps doing a random walk? It would have to have some measurable effects, distinguishable from "consistency with states prior to the current t". That consistency with previous states is written as t2=t1+X. If t1+X is always "previous state plus some small change", we simplify X to be 1. If you can invent HOW that random walk would manifest, you're up for a nobel prize.
- thehappypm 2y agoI’ve thought about this as well. We really only perceive time because we have memory; with no memory (like in 50 First Dates) time stands still. The only thing that breaks this is entropy. Even without memory, you can observe the universe and see how close we are to heat death at any moment. Thats an absolute age