Very important question!

[BlakeGood88]

Originally Posted by ketzer

Well, relax, I expect you will have an infinite variety of choices.

The many-worlds interpretation implies that there are very—perhaps infinitely[11]—many universes. It is one of many multiverse hypotheses in physics and philosophy.
https://en.wikipedia.org/wiki/Many-w...interpretation

https://www.scientificamerican.com/a...ett-biography/

In the sixth, we would see a plane of possible worlds, where we could compare and position all the possible universes that start with the same initial conditions as this one (i.e. the Big Bang). In theory, if you could master the fifth and sixth dimension, you could travel back in time or go to different futures.
https://www.universetoday.com/48619/...10-dimensions/

But you might like being a future Zombie, you never know.

Right, its kinda like show Quantum Leap, where a guy not only time travels, but also inhabits the body of a person, in the past. I doubt that zombie stuff will happen, unless JFK was never elected in another timeline.