In the future, Keynes imagined, the fruits of capitalism would redeem capitalism. “All kinds of social customs and economic practices . . . which we now maintain at all costs, however distasteful and unjust they may be in themselves, because they are tremendously useful in promoting the accumulation of capital, we shall then be free, at last, to discard,” he wrote.

It is, to say the least, disappointing that things haven’t turned out that way—that inequality has grown, that leisure is scarce, that even the rich complain of being overwhelmed. And yet so much of what we do, collectively and individually, suggests that we still believe more wealth is the answer. Reëxamining this belief would probably be a good idea—that is, if anyone had the time for it.