I do not know about this John Titot guy, but according to many sceintists, Eisntein himself among them, time travel IS possible.
Why?
It has been proven over and over that time and space are relative and change with motion and velocity, where velocity is only relative to the speed matter travels through time.
As technology reaches the point where travelling to places other than our own galaxy is possible, time travel will be a consequence of it.
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--- Weishaupt ---
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