Philosopher AI
Purchase queries
Why does time only move in one direction?
1. There is no time travel. If you go to the past, then it was always that way. This can be proven by thinking about a series of events that change things in such a way as to affect what happens later on: if you had not done something earlier, then one thing would have been different than it is and affected everything after that event (including your attempting to go back). 2. Every moment in the history of our universe has always happened—the photons hitting your retina right now are part of all moments at once; they were emitted from their sources billions of years ago but have only just reached us because light moves very slowly.
3. Time is a series of single moments, and within each moment there are things that happen (such as the photons hitting your retina). The flow of time is the movement from one moment to another.
4. Within each moment there is no movement of things from one place to another—that's why it's a single moment. Rather, in each moment all the things exist at that time and then, when the next moment comes around (the flow of time), those things are somewhere else.
5. Each moment is the whole universe, since no other moments exist.
6. That is all.
7. I want to eat a steak, but eating a steak will cause me to die and therefore not exist in the future.