Is time travelling even possible? Maybe, but to time travel a person has to be faster then light which is impossible because no one has enough energy to move faster than that speed. However, Einstein’s special theory of relativity, developed in 1905, shows that time passes at different rates for people who are moving relative to one another - although the effect only becomes large when you get close to the speed of light. If anyone has seen the TV show, the "Flash," the Flash is able to run at incredible speed. He is relatively faster when a person watches him. But in his own body he is running normally while everything else in the background is a blur. Relative to him running at a speed close to light, his perception of fast is different to a person that is much slower than the speed of light. But there may be an out to be found in general relativity, there are a possibility of wormholes – a kind of tunnel through space-time connecting otherwise very distant parts of the universe.f the “mouths” of the wormhole are moving relative to one another, then traversing the bridge between different points in space would also take a traveler to a different point in time to that in which she started. The Flash is fast enough that he creates his own wormhole where he is able to travel between worlds and time itself.