How did we get so busy?

Elizabeth Kolbert in The New Yorker:

In the winter of 1928, John Maynard Keynes composed a short essay that took the long view. It was titled “Economic Possibilities for Our Grandchildren,” and in it Keynes imagined what the world would look like a century hence. By 2028, he predicted, the “standard of life” in Europe and the United States would be so improved that no one would need to worry about making money. “Our grandchildren,” Keynes reckoned, would work about three hours a day, and even this reduced schedule would represent more labor than was actually necessary.

Keynes delivered an early version of “Economic Possibilities” as a lecture at a boys’ school in Hampshire. He was still at work revising and refining the essay when, in the fall of 1929, the stock market crashed. Some might have taken this as a bad sign; Keynes was undeterred. Though he quickly recognized the gravity of the situation—the crash, he wrote in early 1930, had produced a “slump which will take its place in history amongst the most acute ever experienced”—over the long run this would prove to be just a minor interruption in a much larger, more munificent trend. In the final version of “Economic Possibilities,” published in 1931, Keynes urged readers to look beyond this “temporary phase of maladjustment” and into the rosy beyond.

According to Keynes, the nineteenth century had unleashed such a torrent of technological innovation—“electricity, petrol, steel, rubber, cotton, the chemical industries, automatic machinery and the methods of mass production”—that further growth was inevitable. The size of the global economy, he forecast, would increase sevenfold in the following century, and this, in concert with ever greater “technical improvements,” would usher in the fifteen-hour week.

More here.