[Magnum44]

I challenge you to describe one space system that is successfully doing distributed sensing, distributed processing, and distributed comms. Those are currently the subjects of college papers and have yet to be fielded. Sounds nice but show me.

[palmer]

It's true that I can show you lots of college papers, many of them 10-20 years old. The reason is hasn't been done is antiquated thinking. As for the rest of the world emulating GPS, that's partly because GPS is dead.

Of course replicating antiquated ideas is mostly whatl China does, although they have done some interesting quantum work that I believe is original. But current quantum implementations are expensive, like your GPS. That will change however, like everything else.