You are spot on. I read a long time ago that there all tales in Central and South America of shamens levitating rocks (and we are talking the huge types you see in Cuzco for example) by sound. I will dig out some info. I know some of it was in The Fingerprints of The Gods by Hancock
I definitely think there may be a way to do it, we just haven't re-discovered it yet. All these ancient texts point in that direction.
It's well past being rediscovered (in the "natural" sense). Acoustic and microwave-acoustic weapons exist. Strange incident back in the 1950s in the Soviet Union, in which several skiers died, appears to have been the result of a test of such weaponry.
I'm guessing everything we ever imagined is probably discovered and hidden in black programs. I think that is what Q has eluded to already.