Now let's imagine there was some magical, mystical device which allowed pilots to communicate with somebody on the ground and this person had a sorcerous device which showed him where other aircraft were, which altitude they were flying and in which direction, then that person on the ground could warn the pilot about aircraft coming close. Wouldn't that be a fantastic improvement to air safety, supplementing See and Avoid?
That sounds like a nice idea. Where would such a service come from, and who would pay for it?