Going faster than the speed of light is not possible, but it was explained by Steven Hawkins, that you can use the method to go forward in time.
Say for example you are in a train, the train is at 99.9999% the speed of light (not possible to get to 100%) If a little girl runs from the train to the front, she would be going faster than the speed of light yes? No, the laws of nature make this impossible, everything inside the carriage would go slower, to make sure this girl cannot reach the speed of light.
So inside the carriage is going slower than outside, so 100 years outside for example, could be a possible 50 years inside.
Another method explained was something about gravitational orbit, the satellites outside earth actually go slower in time than on earth, so they must be reset every now and then go that our GPS system can still work etc.
In the centre of the milky way is a black hole, the gravitational pull on this black hole, was so strong that is collapsed in on itself. If we were to get some sort of ship to get into the right position that we could properly orbit around the blackhole without getting sucked into it, the time on the ship would go slower, which would again allow us to move faster forward into time. This way would be greatly more efficient.
Ofcourse these are extremely far fetched ideas, and of course as we move on in time, these theorys may almost certainly be proven wrong and another possible way actually found. It is however said to be proven that you cannot go back in time, as wormholes would be the only way to do this. Most well known cosmologists agree that wormholes cannot transport you back in time.
If this was possible paradox's may occur, which would effectively destroy the universe. Say for example a man opens a wormhole, goes to the other side and shoots himself in a time 1 minute before. Once his past self is dead, he can no longer kill himself, so he won't be dead. But then he alive, so he will kill himself again.
This repeating over and over would have the effect of say putting a microphone beside the amplifier it is coming out of. Eventually the feed coming out of the amplifier and into the mic repeatedly can explode the amplifier. It is believed that such thing would happen to the universe and why would a flaw such as that be that "easily" done.
I know this is a lot more in detail, but i am incredibly bored, and im sure someone whos interested could have a good read. In short, it would only be possible to travel forward in time. Time itself was not made by man, is was however discovered by man. Time has existed ever since the big bang occurred 13 billion years ago and is expected to continue for atleast double that time.
