My theory from before: http://news.ycombinator.com/item?id=2906769 - In 20 years, 80% of the people in will be kept alive by welfare, supplemented by their hourly job. Enough to get a small apartment, utilities, cell phone, cheap but unhealthy food, and shopping at the dollar store. And free tv/movie/music/book/sports entertainment via the internet. - 15% will be the middlemen, extracting value from the others via se…
I also think there will be an army of people caring for others - the elderly, children, the sick.
I do not believe that the 6% of people you think will have all the money will just buy more stuff with their money. They will buy other people's time instead and that's why your 80% group will be more like 25% in my view.