3 ms·
>what would it even mean for there to not be an arrow of time? Thermaldynamic soup? Our universe has an entropy based arrow of time because it started in a low
by gizmo686 10y ago
>what would it even mean for there to not be an arrow of time?
Thermaldynamic soup? Our universe has an entropy based arrow of time because it started in a low entropy state. If a hypothetical universe started in a high entropy state, than forward time would appear no more probable than backward time. Of course, such a universe would also not have eggshells; it would just be a thermodynamical soup.
- Houshalter 10y agoWell humans wouldn't exist in such a universe, and couldn't observe it. But even if you started with a completely random cellular automata, it's often common for order and structure to emerge. You could even say that entropy is going in reverse. But causation and the arrow of time still only flows one direction. Perhaps given enough time, life could evolve in such a universe, and ask why time only goes one direction.