What's actually going on in that theory is this... A ship would have to inject MASSIVE ammounts of energy in front of the ship. What this does is compress the space and time in front of the ship. Basically space and time get squeezed up as if a heavy object like a black hole were forming there in front of the ship. The next step is to inject vast ammounts of negative energy (A type of energy we've never observed in the universe, but mathimatically it could exist) behind the ship. What this does is expands the space and time behind the ship. Coordinating the two effects together can allow the ship to travel faster than the speed of light because it's not the spacecraft moving, but the space around it due to the compressing and expansion of space in front and behind it.
(I may have the negative and positive energys reversed. I forgot which one went to the front of the spacecraft but this is basically how it works.)
The universe is a LOT wierder than we take for granted.
