The OP was the one who was talking about both trading and socio-economics, so I was responding to both topics because of that. I think that what you say about productivity has been true historically, but I think that a robust form of artificial intelligence is going to make all of that obsolete. When we reach the point where a software program as intelligent as Albert Einstein can be purchased "off the shelf" by someone for $100 (which is a point not too far off, in my opinion), the whole idea that the average person can do anything to "add value" will become ludicrous.