As of about ten years ago, gravitational waves are no longer theoretical. That said, I think that given the profound relative weakness of gravitational force, the technology to be able to generate waves is far out of reach; naively, I’d expect we’d have to be able to wiggle multiple-stellar-mass objects around in a controlled way.
As of about ten years ago, gravitational waves are no longer theoretical. That said, I think that given the profound relative weakness of gravitational force, the technology to be able to generate waves is far out of reach; naively, I’d expect we’d have to be able to wiggle multiple-stellar-mass objects around in a controlled way.