I now know how Chief O’Brien felt in that episode of Deep Space Nine when he met hisself from the future.In other words all this talk of dimensions and alternate realities is giving me a headache.
Time travel is different from dimensions and alternate realities. Time travel is the when and where of a point in space and time in a universe. Dimensions is layers of existence in the universe, altered realities come from changing something from the past or going to another version of a universe.
