That is actually not a drive, since it is not (and, given the known laws of physics, cannot be) mounted on the ship it propels. So lotsofmangos's idea is not qu

That is actually not a drive, since it is not (and, given the known laws of physics, cannot be) mounted on the ship it propels. So lotsofmangos's idea is not quite the same, as it can be on-ship (although trying to use it as a FTL drive would either require infinite energy or rip the ship apart due to tidal forces (or, more likely, both).