Another idea was to use beams of Neutrinos and go point-to-point. It's been demonstrated[1] already. [1] https://physicsworld.com/a/neutrino-based-communicati

Another idea was to use beams of Neutrinos and go point-to-point. It's been demonstrated[1] already. [1] https://physicsworld.com/a/neutrino-based-communication-is-a-first/ https://physicsworld.com/a/neutrino-based-communication-is-a...