New simulations are set to enable "time travel" to solve problems in the real ... it is theoretically possible to leap through time. "Imagine wanting to send someone a gift: you need to send ...

The grandfather paradox is just one of the thorny logical problems that arise with the concept of time travel. But one physicist says he has resolved them.

Humans have always wanted to change the past or future. However, as much as we might like to travel through time, this concept raises paradoxes (things that don’t make sense) and philosophical ...