"Since Alcubierre first proposed his theory, physicists have discovered a number of strange properties. The people inside the starship are causally disconnected from the outside world. This means that you cannot simply press a button at will and travel faster then light. You cannot communicate through the bubble. There has to be a preexisting 'highway' through space and time, like a series of trains passing on a regular timetable. In this sense, the starship would not be an ordinary ship that can change directions and speed at will. The starship would actually be like a passenger car riding on a preexisting 'wave' of compressed space, coasting along a preexisting corridor of warped space-time. Alcubierre speculates, 'We would need a series of generators of exotic matter along the way, like a highway, that manipulate space for you in a synchronized way.'"
Is this what the Node Drive is based off of?