Dimensional Flux Generator Idea

Einstein said that gravitational force is created because of warping of the fabric of the 4th dimension, Space time. Kaluza theorized that the force of magnetism might be created by fluctuations within a tiny, curled up hidden 5th dimension.
Thus it seems as if causing a hidden, curled up dimension to fluctuate is a good way of generating force and, if that is so, eventually, I think, people will use dimensional fluctuation  as a way of creating force to generate energy; for spacecraft propulsion and possibly for creating directed energy weapons.