THE LUMP OF LABOR FALLACY? Jeremy Rifkin:

Herein lies the conundrum. If dramatic advances in productivity can replace more and more human labor., resulting in more workers being let go from the workforce, where will the consumer demand come from to buy all the potential new products and services? We are being forced to face up to an inherent contradiction at the heart of our market economy that has been present since the very beginning, but is only now becoming irreconcilable.

Huh? There are a lot of high achievers out there who would really like a day off once in a while ...