If time travel was real, we'd be able to prove it in some way. So I'll officially send out this post with a request that a person from the future reading this send me a reply within the next hour in my current time. If no response comes through, ... hold on, the UPS truck just pulled up.
Someone wisely told me something the other day concerning all this in relation to zero point energy technology. If we did have this capability of time travel would it be prudent to let anyone know? If it got into the wrong hands who knows what they could do with it.