So I’d have already seen my self travel back in time and am just repeating what’s already happened. Which would mean I’d have already seen my current self in advance and am now just experiencing the same event from the other way around?
So I’d have already seen my self travel back in time and am just repeating what’s already happened. Which would mean I’d have already seen my current self in advance and am now just experiencing the same event from the other way around?
It depends on how you imagine time travel and causality. Is it a stable time loop? Or do you visit another version of reality with different outcomes? When you travel, are you unraveling the course of history to be redone? Or are you visiting an unyielding etching of the timespace continuum? If time is a set of dimensions, as all modern physics supports, then theoretically it wouls be possible to move through those dimensions in all directions. Special relativity confirms that movement affects how you move through time, but if you go backwards in time, you are still moving forward from your own reference point. That’s the only way to retain your memories.
I believe I’m just assuming a linear timeline in this scenario, visiting a different dimension is definitely a possibility instead of going back on one timeline
With one linear timeline, you basically have Back to the Future rules. You can go back and change things, even if it rewrites you out of existence. Of course, there are some logical paradoxes that arise from that theory of time, so most versions rely on some delayed repair mechanism, like how the photo of Marty slowly disappears, or how The Ancient One explains the Time Stone to Professor Hulk. Time Cop, Butterfly Effect, and Looper do the same, with changes going into immediate effect like old injuries becoming later scars in real time, but erasing yourself really ought to be devastating to spacetime itself. I liked the concept in Butterfly Effect where the time traveler experiences all the memories of their new life in the altered timeline with every new change, but then they abandon the hard sci-fi aspect to get cute with stigmata. Donnie Darko probably handles it the best, where time travel itself creates a universe-ending paradox that requires the destruction of the time traveler.
Essentially, you jump from now back to another location in spacetime where you didn’t exist the first time around. If you overlap with yourself, you’re either going to gain a new retroactive memory, or there’s some magical maguffin that erased the memory (like the Tardis does for the Doctor), or some universal force reconciles the timestream and eliminates the paradox.
I would say one linear timeline you have more Bill and Ted’s Excellent Adventure. Kind of like what they were describing in the first place (from Bill and Ted’s perspective, we’re not going to talk about the historical figures perspective…)
I think, since future Bill and Ted appear to the earlier Bill and Ted, and Rufus directly assists in creating his future, I think we have to assume that all of those historical figures always experienced those things, and then returned to their timelines with knowledge of the future. Napoleon rode the waterloops before Waterloo. Socrates played catch with Billy the Kid. Those are historical events, as much as Rufus and Future Bill and Ted helping present Bill and Ted pass their classes.
You don’t see enough discussion about Donnie Darko in time travel.
That’s interesting response thank you, definitely food for thought