i said in a way its like the ion drives. a constant increase in power. might take awhile to get there but if u constantly keep add speed like the ion drive even though it would take way to long. but yes it would only work in space. and as far as blowing out a humugus force at once thats not how the ion drive works. they used a type of satilite to view a comet not that long ago, with an ion drive. very slow to get to sped but its the fastest thing we have at the moment. its a shame i cant remember the name of it.