If we look around, we find that there is something that fits the requirements of this perfectly elastic medium. What does every body in the universe drag about with it that is related to every other body in such a manner. Why not gravitation itself. Why couldn’t light be propagated in or on the gravitational force that interrelates each and every body in the universe. Why not? It wouldn’t be the only force field that does so. The electrostatic field between the plates of a capacitor acts as a medium for the conduction of signal intelligence.
Wouldn't that mean light is gravitational waves, since you are discribing light as being wave-like disturbances in the gravitational field?
Which wouldn't really make much sense.
Edited by Son Goku, : No reason given.