One thing you have to imagine if you are travelling into the future:

If you can go into your future then everything you do is foreseen and you are not responsible for what you do because you have no choice.
This means also that every kriminal is not guilty.

Roach you takeing ewm90 lessons?

i realised that time travel is actualy not impossable just uneffective ex a tangent universe a loope in time wich creats a parrodox  

but then again STEVEN HAWKING not sevin hockings said nothing could escape a black hole, 20 years down the road now he says that HAWKING radiation can escape a black hole ( a type of radiation he discoverd ) and so do half the atoms. (ie ifa molecule was to be swallowed a single atom would escape from it.

ewm you are correct, we won't know  because they are all theories. but one thing is for sure, time travel does exist but not as in SF scale. it is tested with 2 planes flying opposite from eachother with 2 clocks onboard. after flying there was a time difference of 0,000034 secs. it was very small, but it is time travel.

and most physisist thought it was impossible to have more then 4 dimensions and there are now 12 so physisists can be wrong. same with the string theory.