What you're describing are economies of scale, which are undoubtedly more efficient, but we also have a hard cognitive social limit in Dunbar's number. Deciding what's human scale is still up for debate. While it's true that more is achievable with more people, time has a tendency, not only reduce costs, but to democratise technology. As William Gibson said "The future is already here, it's just not evenly distributed" Again we're getting in to lack-of-vocabulary territory. I actually think we need a global society with universal laws to govern a universal market. That means some big, scary form of centralisation. In the case of my little personal project, it's trying to mitigate some of that New World Order danger by decentralising the means of production for, at least, basic living requirements. I also just kinda want to build robots....but this thread is intended as a more general discussion on how to handle approaching technologies and the social impact they might have.