A “crisis of abundance” initially seems like a paradox. After all, abundance is the ultimate goal of technology and economics. But consider the early history of the electric washing machine. In the 1920s, factories churned them out in droves. (With the average output of manufacturing workers rising by a third between 1923 and 1929, making more washing machines was relatively cheap.) But as the decade ended, factories saw they were making many more than American households demanded. Companies cut back their output and laid off workers even before the stock market crashed in 1929. Indeed, some economists have said that the oversupply of consumer goods like washing machines may have been one of the causes of the Great Depression.