Time is simply another dimension, so yes it would be interdimensional travel. Borrowing terminology from Douglas Adams, being sent to the past creates a new "probability" which doesn't displace the original one but runs alongside it at a different location on the "probability axis" (think of it as the fifth dimension, with time being the fourth). Like (arguably) time and space, probability is infinite in extent so there is always room for divisions.Will someone please explain to me how the adult timeline can exist if Link goes back in time in OoT? Wouldn't Link going back in time simply create a new timeline that erases the old one (except in Link's memories) by altering the events that created the old one? Time travel doesn't create new timelines; that would be interdimensional travel.
Of course, "create" applies the notion of cause and effect, which is the basis of A-Theory, while the rest of OoT more closely follows B-Theory. It might be better to think of the split as simply existing - that is, removing the context of time altogether so there's no notion of "before it was created". Without this context we also can't say that one thing replaces another. With no before and after, both exist. Therefore the CT isn't "created" but is just one possible continuity, and it doesn't "replace" the AT.
Now, you can add back in the time context if you like and trace a cause to the CT's divergence from the AT. Then yes, from the perspective of the CT the AT doesn't exist, and vice-versa.
...oh uh... sorry for not paying attention to the title of this thread at all.
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