>>14324726No, we can't. The only way of causing gravity (i.e. warping spacetime) is by disturbing the Higgs field, which is done by populating the stress energy tensor with shit. This can be done by either mass or potential energy (tensile or compressive stress formed by forces and distances) but the proportionality is so ridiculously shitty that you'd need to compress a mountain down into the space of a marble or something to have any effects that compete with the other forces. Obv the repulsive electromagnetic coulomb forces repelling the molecules in the rock have something to say about that.
Anyways, gravity is also a solely attractive and there's no way to block or redirect it (it's a scalar quantity propagated via space itself instead of through space), so there's not much interesting you could do with it. Maybe the most interesting thing would be wiggling that compressed mountain back and forth and then modulating the wiggle to make a transmitter that works via gravitational waves rather than waves in the EM field like radio does. But then, how tf are you gonna wiggle something that weighs as much as a mountain that fast? Nyquist frequency says you need at least 40 kHz to get good audio.
