The following quote was written in 1930, in the New York Times:

"Some day no one will have to work more than two days a week... The human being can consume so much and no more. When we reach the point when the world produces all the goods that it needs in two days, as it inevitably will, we must curtail our production of goods and turn our attention to the great problem of what to do with our new leisure."

Given the advances in productivity over the last century, why do I have to work 5 days a week?