“What will we do with all our spare time?” That thought was at the heart of an essay published in 1930 by the economist John Maynard Keynes. In it, Keynes proposed that within a hundred years, technological and economic advances would bring humans to a point where we work only three hours a day and fifteen hours a week.

It’s been more than ninety years since Keynes published his famous essay. But technology, instead of creating more leisure, has made us busier than ever. Our days are full, and while everyday tasks like travel and meal preparation take less time, we’re…