Originally Posted By: redewenur

considered by many to be impossible for reasons of both science and philosophy. Although there are serious ideas


There's a fairly simple theoretical way to fake it, which might be good enough for some purposes.

Just do the twin paradox! You could travel hundreds of years into the future, and when you return to Earth, people would meet someone from the past, in his ancient spaceship, with his memories of the world that they only know from history books.