Originally posted by jonconley:
Why would you say this? And even if there wasn't a way to do it with a machine, its technically already possible going into space and/or blackholes.
No, it's not been proven or even justly theorized that it's possible through black holes. The deal with black holes is that they could significantly reduce the distance required to traverse space, by acting as meeting points in the fabric of space. What is a couple billion trillion light years away essentially becomes a matter of a few billion miles. Still a long way, but it's considerably closer. That is just a shortcut though, not time travel, if it in fact would work.