Interesting post. Though I've got a question.
Why do you think sufficiently advanced technology (e.g. in renewables, and 3d printing) will be open to anyone other than a minority of people, and not fiercely protected with patents and force?
Especially considering that that research would have been produced with labour.
As an aside, this sounds like some sort of voluntary collectivism, which imo will never be widespread.
Great post, though!
IMO, history seems to show the commoditization of advanced technology over time. The phone in my hand has more computing power than super computers of old, etc.