You might be interested to know I time travelled here from the year 1984. It was easy, I did it one year at a time. I know what it would take to get back too, but I don’t know how to do it. All it would take is reversing all of the physical processes long enough for the earth to go the wrong way around the sun 34 times, spinning in reverse the whole time. So if anyone can figure out how that works let me know.
I don’t want to go back to 1984 though, I’d just like to see if it was possible. I don’t even really want to go back to last week if I don’t have to. The problem with going back is that in reversing every physical process, the process of forming my memories would reverse as well. So in 1984 I would be a squalling baby who has lost all of the knowledge it’s taken me 34 years to gain, assuming I have gained any to lose of course. I couldn’t make any new decisions either, assuming that the re-reversal of physical processes didn’t alter the subsequent progression of events. So for every situation I found myself in, I would have the same prior knowledge I had the first time, and no knowledge of the impact of my decision, and so there is no reason to assume I would do anything but make the same 34 years of ‘decisions’ all over again.
Now that I think of it maybe this shit happens all the time, physical processes going forward and backward, we’d never know.
This little thought experiment seems to demonstrate that movement forward in time is just the natural progression of events, and that movement backwards in time is just the reversal of that progression. If that’s the case, then time isn’t anything outside of the physical processes of the universe. It’s not a special little dimension, it’s not its own thing at all. Just a way of talking about change on the directional stage of the universe. You could never go back in time and tell yourself to do whatever, because you are the only you in existence, there is no other you to visit. See, this is what I get for writing one of these while I’m waiting for my coffee to steep, or whatever you call it when it’s sitting in the french press becoming coffee before you plunge it, now time doesn’t exist. Gonna be a long day.