Do the implementation details really matter that much? It's all some sort of https://en.wikipedia.org/wiki/High-altitude_platform_station https://en.wikipedia.

Do the implementation details really matter that much? It's all some sort of https://en.wikipedia.org/wiki/High-altitude_platform_station https://en.wikipedia.org/wiki/High-altitude_platform_station , limited by the constraints of available technology and budget for experiments at that time. And not that pioneering (conceptually at least) either, because of https://en.wikipedia.org/wiki/Teledesic https://en.wikipedia.org/wiki/Teledesic from 199x...