Manley P Hall was talking about just this kind of an idea (a kind of global project vishnu for humanity) back in the 80s. You'd be surprised to see that all of these ideas have been floating around for quite some time; the only difference is it would have been impossible to propose an elegant solution for their implementation through this brand new technology we call blockchain.
I truly believe this idea of a project vishnu makes perfect sense and I too see it as being unavoidable.
We will have to mass-adopt a global intelligent system that can handle the solving of all our current problems. The only question is in what form, on what scale, what time-frame, what kind of consensus mechanism.
All of these, as your great post pointed out: incredible vital questions to which in my view there is as of yet no final answer: yet we all (at least those of us who care about humanity and our fellow man) not only begin to ponder these questions but actively start experimenting with their implementation.
Whatever scale or group of human beings we can gather together and get to push for these kinds of projects has to be done... There's a clock ticking and the early birds will get the worms!
It's off to the races with mankind and I can't wait to see what kind of projects start rolling out, how people are able to contribute and participate, and what kind of actual improvements we can make in everybody's lives.
Have been following for a while and I would most certainly like to delve deeper into the topic with you!
I also really like the name Project Vishnu :)
May 10,000 blessings befall you and your noble aims my guy! xx