Time travel is a complex concept with no one right way since it is theoretically impossible, but these 18 movies made the ...

Fortunately, the predestination paradox can be a handy survival tool. Time traveler Henry often finds himself sent to the same points in time and space as his younger self, and teaches him how to ...

Harry assumes the man's form, effectively creating a predestination paradox (sometimes known as a closed-loop or causality loop). Goliath was not another member of Harry's species...he was Harry!

A predestination paradox occurs when a person traveling back in time becomes part of past events and may even have caused the event that led to them traveling back in time in the first place.