Don't people think?? going back in time will never happen! because then people would have come back from some point in the future (a time when they've created the machine) and tell us about it!... and it hasn't happened therefore you will never be able to go back in time!
Slashdot Mirror
Don't people think?? going back in time will never happen! because then people would have come back from some point in the future (a time when they've created the machine) and tell us about it!... and it hasn't happened therefore you will never be able to go back in time!