> To be honest, Id go back 87 years and do a hit on Adolf... <
You can jump forward in time. Not kidding. Its one consequence of Einsteins Theory of Relativity.
https://en.m.wikipedia.org/wiki/Time_travel#Forward_time_travel_in_physics
And interestingly enough, there is some math to support that you can also go back in time. So you can be present in some past age. You just cannot change anything.
The old Twilight Zone even did an episode about that. Some guy went back in time to kill Hitler. He got Hitler in his sights. But then his gun jammed. History was not changed.
The new Twilight Zone did a different take. Someone goes back in time to drown Adolf as an infant, and he’s a wonderful baby, quiet and patient, but she drowns him. But then she replaces him with a homeless Gypsy baby, who screams and rants and carries on constantly. This baby grows up to be Hitler.
I suppose people have postulated a world without Hitler. I wonder if Stalin would have gone to war instead against Europe? And with no Hitler would have been victorious?
And the cities of America would be run by communists and all the youth would love communism and....
Sorry; but being present DOES 'change' something.