Well, this is what I'm personally concerned about. I agree with everything you just said. But what is the politically optimal way to cross over that inflection point? Or to rephrase: what kind of rules should we have in government/society so that the transition doesn't effectively cause a revolution and end up derailed? Should we consider an education system oriented around high-skill labor? Should our system of taxation and assistance account for this new concentration of capital? And can you do this without impeding the very technological/economic growth you're accounting for? Too much taxation may stymie private sector advancement, too little taxation may cause an elective or literal revolution, and the wrong adjustments can easily introduce moral hazards (e.g. nobody working at all before our technology is advanced enough to require zero human capital).