You're nuts man. A tiny weeny fraction of the people alive today operate in that knowledge base. We don't need net more people, we need less people overall and a larger proportion of above average intelligence people. Agriculture is heavily automated. Service fields are increasingly automated. The trades are critical of course, but you don't need that many tradesmen/construction workers per egghead to justify our enormous (for the level of our technology & resources) population. The whole coof boondoggle exposed just how unecessary a large percentage of our jobs really are. There's an argument to be made for larger pops. producing more geniuses, but there's no indication that this trend is unlimited, nor that the potential for more innovation always outweighs the increasing costs of those larger pops.