Sorry I guess I should have clarified, but I think the other reply said it alright.
basically, if I move backwards in time, in my own spacetime, then my relative position in the universe would remain unchanged. hence Maybe I go back to where I was in time and relative to the universe(my parent’s home 20 years back). the tardis can put you back in time and change where in that time you were.
This is all theoretical, but maybe hollywood isn’t as far off as we think (even if they would have arrived there by chance and not logic)
Time travel like that can only go forward. If you want to go backward you need to decouple yourself from your relative position in spacetime. Or find a way to go faster than light without ever going light speed, which will definitely need a space ship.
Sorry I guess I should have clarified, but I think the other reply said it alright.
basically, if I move backwards in time, in my own spacetime, then my relative position in the universe would remain unchanged. hence Maybe I go back to where I was in time and relative to the universe(my parent’s home 20 years back). the tardis can put you back in time and change where in that time you were.
This is all theoretical, but maybe hollywood isn’t as far off as we think (even if they would have arrived there by chance and not logic)
Time travel like that can only go forward. If you want to go backward you need to decouple yourself from your relative position in spacetime. Or find a way to go faster than light without ever going light speed, which will definitely need a space ship.