I would agree but i don't think that man will live long enough for us to actually Travel through
time.
Added: There is nothing inpossible it's all just inprobible.
Kip Thorne figured out 4 different ways to make time travel possible back in the late 70's or early
'80s. Apparently it's all theoretically possible but the energy requirements are so high that it
could not practically be done.
The biggest question in physics is: Why does time's arrow point forwards? Nobody has ever been able to prove backwards travel impossible; in fact, they're hard-pressed to explain why it ISN'T running backwards.
Yes If we can make a machine that goes at the speed of light we can become energy and we can go back
into time but the problem is how do we make it and when we get on the other side would mouth be
where our nose is our eyes where are legs are. So you see time travel is tricky.