> The EM drive literally entails perpetual motion. We know that's impossible, yet someone always manages to sell a new version of it every few years. Well the

> The EM drive literally entails perpetual motion. We know that's impossible, yet someone always manages to sell a new version of it every few years. Well the universe was created, so that seems to imply the energy can be created. We don't know that energy can't be created, just that the current laws of the universe don't allow for it, as far as we know. Not that I believe this will violate that law in anyway. Even if the drive turns out to be real I suspect it will be something like photon entanglement, where it appears data is travelling faster than light but it's in no way helpful.