These devices by their very nature violate the law of conservation of momentum
They only do that locally, while in the universe as a whole momentum is conserved.
The physics kinda intrigues me. He’s got an elegant explanation for inertia, based on relativity alone. The only other inertia theory brings quantum physics into it. And his theory is pretty similar to Cramer’s transactional interpretation of quantum mechanics. Maybe, contrary to the cartoon, the universe really is like that.
I admit I’m not exactly holding my breath for this one, but it seems worth the experiment. Given that it’s only evident under very contrived conditions, if it’s true it’s not something we would have noticed so far.
