GMforPowergamers
Legend
What about the idea that you turn on your time machine on, and then can only go back that far...
Or the Sam becket only within your life time
Or 7 days
Or the Sam becket only within your life time
Or 7 days
but then you create a paradox, which really screws things up worse.
Such a time machine allows one to travel back in time, but no further back than the creation of the machine.
But Nazi sympasizers would also go back in time to prevent that. They would be the time roaches ofdthe universe.
Who says Neo-Nazi's wouldn't be the one to create the machine?
Hitletr did many great things without him, we would have less tecnologfy related to medicine.
In fact, if you are saved by a life threatening operation, Hitler probably saved your life. What he did in the Holocaust was horrible, but humanity benefited by it far beyond anything we have done since.
It helps when you can use trial and error on subjects closer to human than animals (humans are closest), so yeah.
Theoretically, general relativity allows one to create a time machine. (that doesn't mean that it will ever be possible in practice). Such a time machine allows one to travel back in time, but no further back than the creation of the machine.
So, until someone builds a time machine there's no traveling back in time.
Which movie did you pick up this version of general relativity from?
I don't know what version of General Relativity you've been reading, but that's not what it says about time travel at all.