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Time travel
You'd need both time travel and teleportation, or else you'll find yourself in space when you travel forward or back in time. The Earth isn't a stationary object
Time (and relative dimension in space) travel
That entirely depends on what is being done when traveling in time. Is it localized, regional or defined at the time the lower is used. Does it effect the world around you or is it you in the world that is manipulated.
Depends if it's a monkeys paw power or a self defined ability
This assumes an absolute reference frame, which does not exist in this universe.
Time travel already is teleportation.
Actually, teleportation would be more powerful than time travel, since you can travel through different times as well with teleportation as an ability, but you can only teleport to a different time with time travel.
Nothing is or everything is. There is no absolute motion.
Yes there is, you just can't measure it.
it's all relative. definitively relative.
that said, if you go to the matrix and ask for the power, it's not liable to give you half-assed solutions that don't take the details into account. Therefore it would already take into account the relative displacement and correct accordingly.