John Maynard Keynes was, by any reasonable measure, one of the most consequential economic thinkers of the twentieth century. He helped redesign the global financial architecture after World War II. He gave his name to an entire school of macroeconomic thought. He was, in other words, not an amateur.
In 1930, he wrote an essay called "Economic Possibilities for Our Grandchildren" in which he predicted that rising productivity would, within a century, reduce the standard workweek to approximately fifteen hours. His grandchildren, he suggested, would barely need to work at all. The main challenge facing future generations, Keynes argued, would be figuring out what to do with all their time.
Keynes's grandchildren are now in their fifties and sixties. They are, statistically speaking, exhausted.
The Golden Age of Optimistic Labor Forecasting
To be fair to Keynes, he was not alone. He was the opening act for a half-century parade of economists, sociologists, and forward-thinking labor experts who looked at America's rising productivity curve and made the same intuitive, logical, and spectacularly incorrect calculation: if we keep getting more productive, we'll eventually need to work less. Simple math. Unassailable logic. Completely wrong.
The 1930s and 1940s saw serious academic debate about how society would manage the coming "leisure problem." Not the work problem. The leisure problem. The concern was that Americans, suddenly freed from the tyranny of long hours, wouldn't know what to do with themselves. Universities began developing curricula around "leisure education." This is a real thing that happened.
The labor movement, for its part, was making genuine progress. The forty-hour workweek was codified in the Fair Labor Standards Act of 1938. Hours had been falling for decades. The trend line was unmistakable. Extrapolate it forward and you got — well, you got Keynes.
Nixon's America Was Going to Have So Much Free Time
By the 1960s and early 1970s, the shorter-workweek prophecy had become something close to consensus. The Senate Subcommittee on Labor held hearings in 1967 in which experts testified that Americans might be working as few as twenty-two hours per week by 1985. The Washington Post ran pieces speculating about what a leisure society would look like. The word "automation" appeared in these articles with the breathless excitement usually reserved for miracle cures.
In 1965, a report commissioned by the Johnson administration predicted that by the year 2000, Americans would enjoy a fourteen-week paid vacation annually and a seven-hour workday. The report did not speculate on what Americans would do with the other seventeen weeks, but presumably it involved a lot of national parks.
Richard Nixon, not historically remembered as America's leisure president, nonetheless signed legislation in 1970 creating the four-day weekend for federal employees on certain holidays. This was presented at the time as the beginning of something, a harbinger of the shorter-workweek future that everyone could see coming. It was, in retrospect, about as far as it got.
The Automation Paradox Nobody Predicted
Here is where the story takes its most interesting turn. The economists weren't wrong about productivity. American productivity has increased enormously since Keynes wrote his famous essay. Automation did eliminate enormous categories of labor. The math that undergirded the shorter-workweek predictions was not, in itself, flawed.
What the forecasters missed was the question of who gets the productivity gains. They assumed, with a touching faith in the natural order of things, that increased productivity would translate directly into more leisure time for workers. What actually happened was that increased productivity translated into increased output — more goods, more services, more GDP — while working hours stayed stubbornly flat or, in many cases, crept upward.
The other thing they missed was email. Nobody in 1967 was modeling for the possibility that technology would make workers more reachable, not less. The same automation that was supposed to liberate Americans from their desks instead chained them to their desks via a different mechanism and added a second shift of inbox management on top.
The Arrival of the Hustle Gospel
By the 1990s and 2000s, something remarkable had happened to the cultural conversation around work. The shorter-workweek prophecy hadn't just failed to materialize — it had been replaced by its ideological opposite. Overwork became a status symbol. "Busy" became the acceptable answer to "how are you?" Silicon Valley produced a generation of entrepreneurs who celebrated hundred-hour weeks as evidence of seriousness and commitment.
The Keynesians had predicted a leisure problem. America solved it by deciding leisure was for people who weren't ambitious enough.
The Bureau of Labor Statistics, which has been tracking these things with admirable thoroughness, reports that American workers today put in more hours annually than workers in most other wealthy countries, including Japan, which has a word — karoshi — specifically for dying from overwork. We beat Japan at working too hard. This is an achievement of a kind.
The Four-Day Workweek Arrives (Again, Still, Forever)
The shorter-workweek prediction has never entirely died. It surfaces every decade or so, freshly dressed in new justifications. In the 2010s, it was backed by studies from Iceland and Microsoft Japan showing productivity gains from four-day trials. In the early 2020s, a wave of post-pandemic renegotiation around work-life balance briefly made it seem inevitable again.
Several American companies have experimented with four-day weeks. Some have reported positive results. The movement has genuine momentum, thoughtful advocates, and serious research behind it. It is, in other words, in roughly the same position it was in 1967 when Senate subcommittee witnesses were predicting twenty-two-hour weeks by 1985.
One hesitates to make predictions.
The Forecast That Felt Too Good to Fact-Check
What the shorter-workweek prophecy really illustrates is the seductive power of a prediction that people want to be true. Nobody needed to interrogate Keynes's math too carefully, because the conclusion was so appealing. Of course we'd all be working less. Of course prosperity would mean more time for family, hobbies, and whatever leisure education had prepared us for. Of course the future would be kinder than the present.
The economists who made these predictions weren't hacks or charlatans. They were serious people making serious arguments. They just forgot to account for the possibility that the humans receiving all this productivity-generated wealth might choose to generate more productivity with it instead of going to the beach.
Keynes's grandchildren are still at their desks. But at least they have good Wi-Fi.
