this post was submitted on 31 Oct 2023
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Showerthoughts
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A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. A showerthought should offer a unique perspective on an ordinary part of life.
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I guess that depends on whether you only travel through time (time vs space), or whether you follow the time-line back (aka. travel through time and space, kinda like both you and I are doing right now).
EDIT: there's also the reference point, and whether you can bring a physical vessel, or have to possess your younger self.
Back to the Future appears to be using a kind of relative spatial reference point, and you bring your body along the ride.
Contrary, Steins Gate (the part shown in the series) uses a body as reference, and has you "possess" said body. Though it hints that Back to the Future-like travel is also possible.
Not sure if I can name any story where time and space are disconnected.
Larry niven and the known space universe. Doesn't have time travel, but does have a form of teleportation, where you have to offset the energies for velocity changes between teleport target and teleport destination.
Ahh, enjoyer of time travel movies and anime!