If You Could, Would You Go Back In Time?

[LongTermGuy]

So... if you/I went back in time... would we be looking at ourselves in the past, or would replace ourselves in that time and space?

If we replaced ourselves in that time and space, we certainly could alter the future by our actions. And if it wasn't yourself in that time and space, as in you were viewing yourself in the past as portrayed in "Back to the Future," if you killed yourself, would you then immediately disappear?

Yes (IMO)......because you never existed...so the past (your past) would change fast (erased) Father time is in charge of all that stuff...