Demand for the things we want _today_ will be met. But progress leads to new demands, and they are more complicated. Anthropologists estimate that the work we

Demand for the things we want _today_ will be met. But progress leads to new demands, and they are more complicated. Anthropologists estimate that the work week was at 20 hrs at the end of the Stone Age. We have been inventing new problems in the vacuum created by our successes for, literally, millennia.