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How to find meaning in a meaningless world

Calhoun's mouse heaven: The mice experiment

The beautiful ones

The 8 mice arrived on July 9, 1968 and got dropped into a steel enclosure at the National Institute of Mental Health in Maryland. The pen measured 9 feet square with walls 4.5 feet high. 64 nesting boxes in each wall, 16 water bottles, 4 food hoppers, designed to house 3,840 mice in comfort. No predators, no disease, and food and water without limit. The architect, John B. Calhoun, called it mouse heaven.

The mice spent 104 days learning the layout, claiming territory and finding mates. Then they bred. The population doubled every 55 days. By day 315 the colony held 620 mice, a sixth of the enclosure’s capacity. At that point, with food still abundant and space still available, something strange began.

The breeding slowed and a new group of male mice emerged that Calhoun named the beautiful ones.These male mice retreated to protected alcoves at the top of the structure and stopped doing anything else. They ate, drank, slept and groomed themselves. Their coats were unmarked by the wounds of dominance fights and they were perfectly clean. They never mated. Females, meanwhile, carried half a litter to safety and forgot the rest, or stopped giving birth altogether. Mothers attacked their own pups. Cannibalism appeared in a pen where the food hoppers were still full.

Day 920 brought the last conception, and the last mouse in Universe 25 died on May 23, 1973. The colony had groomed itself out of existence without ever running out of food.

Calhoun wrote that the mice had died twice: first their society, then their bodies.

Viktor Frankl’s warning

2000 miles east of Poolesville and 23 years earlier, a Viennese psychiatrist had returned from Auschwitz with a question. Viktor Frankl had watched men in the camp choose to live or to die from something he could not measure. The men who lost the future died fastest. The ones with a child waiting, a manuscript unfinished, an idea to deliver, those endured what stronger men gave up on. After the war he opened a clinic in Vienna and met middle-aged, fed, sheltered, employed and bleak patients. They came in dreading the Sunday they had just lived through. Frankl called what they had Sunday neurosis, borrowing a term from the analyst Sandor Ferenczi. The depression that comes over people who become aware of the lack of content in their lives when the rush of the busy week is over.

He gave the broader condition its name in Man’s Search for Meaning, and called it the mass neurosis of the century. A private and personal form of nihilism that arrives the moment external pressure lifts. Humans do not need only food and shelter. They need something to push against. Take the pressure away, and the empty space below shows itself.

Every day in Universe 25 was a Sunday.

The man who walked on the moon

Edwin “Buzz” Aldrin Jr. stepped out of the lunar module Eagle 19 minutes after Neil Armstrong, on July 20, 1969. His first words on the surface were “Beautiful view,” and when asked by Armstrong if it was magnificent, Aldrin said: “Magnificent desolation.”

He came home a hero and toured with Armstrong and Collins. Dinners with prime ministers and presidents, but by late 1969 he was tired. He titled the memoir that covered that time Magnificent Desolation. The phrase that had once described the moon now described him. “I wanted to resume my duties,” he wrote, “but there were no duties to resume. There was no goal, no sense of calling, no project worth pouring myself into.”

He drank. His mother, Marion Moon by birth, had killed herself a few weeks before Apollo 11 launched. Her father had killed himself too. Aldrin feared his genes. He drank more. His 21-year marriage collapsed. He took a job selling Cadillacs in Beverly Hills and failed at it. He checked into rehab in 1975, but did not stop drinking until 1978, the year his second marriage ended.

The man had walked on the moon. The purpose of his life had been solved. What he discovered, in the years that followed, was that solving it had been the only force holding him up.

Why lottery winners aren’t happier

In 1978 a young social psychologist named Philip Brickman published a study with Dan Coates and Ronnie Janoff-Bulman. They had tracked down 22 winners of the Illinois State Lottery, and 58 of their non-winning neighbors. They asked them how happy they were and how much pleasure they took in ordinary moments, coffee, breakfast, a magazine, on a scale of 0 to 5.

The winners’ average present happiness scored 4.00. The non-winners scored 3.82. This is a gap so small it falls within the margin of error. The second question, the winners’ enjoyment of small daily pleasures, came in at 3.33, while the non-winners’ came in at 3.82. It seemed like the prize money had not made them happier and broken their capacity for ordinary joy.

Brickman called what he was seeing the hedonic treadmill. Whatever you get, you get used to it. Lottery winners does not stay elated and victims in accidents does not stay devastated. Both groups converged to the middle.

On May 13, 1982, at the age of 38, Brickman climbed onto the roof of a tall building in Ann Arbor and jumped. The New York Times columnist Jennifer Senior would later write a long piece about it, titled Happiness Won’t Save You. Philip Brickman was an expert in the psychology of happiness, but he couldn’t make his own pain go away. The man who had proved that getting what you want would not save you, could not save himself.

The lottery case has an American version that went further. On Christmas 2002, a West Virginia construction contractor named Jack Whittaker bought a Powerball ticket on the way to buy biscuits at a service station and won $314.9 million, the largest single-ticket jackpot in American history at that point. Whittaker was already worth $17 million. He went to church and donated $15 million to build two new churches and started a foundation to help people pay for their homes.

Within two years his car had been broken into for $500,000 and again for $200,000. His granddaughter Brandi, the one he had taken with him to claim the prize, was found dead of a drug overdose. His wife left him. By 2007 he was telling reporters: “I wish I’d torn that ticket up.”

What happens when work disappears

The moment a person stops having to do anything is often the moment they begin to come apart. An Austrian study by Andrea Kuhn and colleagues found that a one-year cut in retirement age for blue-collar men raised the probability of dying before 67 by 2.4 percentage points. A comparison of cognitive scores across 12 countries in 2010, found that the men who retired earliest fell fastest on memory tests. The effect is named mental retirement, and concentrates in men whose identity is built almost entirely on work.

The National Police Agency in Japan reported 40,913 people who died alone in their homes in the first 6 months of 2024. At least 28% were not found for 8 days or more. Around 80 percent were over 65. The Japanese call it kodokushi, lonely death. The phenomenon was first identified in the 1980s among retired salarymen whose entire social world had been the company, and who, once released, had nowhere to be. The men do not die of starvation. Their pensions arrive and their refrigerators work. They die because they stop taking care of themselves, and no one comes looking.

What Dostoevsky, Tolstoy and Huxley predicted

Dostoevsky’s Notes from Underground came out in 1864, over 100 years before the first mouse was placed in the mouse heaven. The unnamed narrator devotes a whole section demolishing the dream of a future scientific utopia where every human desire is satisfied. If we ever build the crystal palace, he writes, then man, out of sheer ingratitude will smash it. He will deliberately desire what is harmful, just to prove he is not a piano key. Man is sometimes extraordinarily, passionately, in love with suffering. Without it he is not a man.

Leo Tolstoy’s The Death of Ivan Ilyich, published in 1886, makes the same case. Ivan Ilyich is a Russian judge, well-salaried and well-regarded. He has climbed every rung the system placed before him, when he one day develops a pain in his side that does not go away. Dying, surrounded by family members who are mainly inconvenienced by his illness, he arrives at the recognition he spent his whole life avoiding: the respectable life he had built was not a life. He had mistaken comfort for meaning, and Ivan Ilyich dies understanding that the comfortable life and the meaningful life are not the same life.

Aldous Huxley’s Brave New World, published in 1932, made the same observation. Huxley imagined a society in which every want is met before it can be felt, every pain managed by a drug called soma, every reproductive question removed to the lab, and every citizen sorted at birth into a caste that exactly matches the work available to them. There is no suffering. There is also nothing to do. (spoiler alert) The novel’s only fully human character, the Savage, hangs himself at the end of the book.

AI automation and the existential vacuum

Goldman Sachs’s research division estimates that generative AI could displace 300 million full-time jobs worldwide. The McKinsey Global Institute reported in late 2025 that the technology already in existence, before any of the next generation of models arrives, could automate around 57 percent of current US work hours if deployed at scale. Dario Amodei, the CEO of Anthropic, said in 2025 that AI could eliminate roughly half of all white-collar entry-level positions within 5 years.

The economic conversation about this has settled around proposals for universal basic income. The framing is that if the work goes away, the floor under household budgets needs to be guaranteed by other means. The technical case is good and the moral case is better, but neither addresses what Calhoun and Frankl were both writing about. The question is not whether the rent gets paid. The question is what you do when you wake up and there is nothing you have to do.

Does basic income solve the problem?

People in rich countries have been having less and less to do, in the survival sense, for generations now, and the result has not been anything like in the mouse heaven. Suicide rates have risen in some places and fallen in others. Life satisfaction in Scandinavia is higher than it was in the 1950s. The historical record of post-scarcity, partial as it is, looks more like the early years of the mouse experiment than its end. The beautiful ones may not appear.

There is one fact that gives the optimistic case support. The recipients of the Finland basic income trial in 2017 and 2018 were not just less stressed. They were more likely to volunteer for community projects and more likely to take adult education courses they did not need and started small businesses that were not strictly necessary. When mandatory work fell away slightly, some fraction of them built their own order. They were not the beautiful ones. They were closer to the mice in Calhoun’s later experiments, the ones in which he tried to build enrichment environments designed to keep mice physically and mentally nourished by giving them puzzles to work through.

How to forge meaning in a post-scarcity world

Humans do not just need scarcity. They need scarcity they can solve. The mice in the mouse heaven had nothing to solve. Aldrin had walked on the moon. Brickman had proved what he had set out to prove. Whittaker had received the maximum lottery winning. In each case, the structure that had been holding the person up was the unsolved problem ahead of them, and the moment the problem disappeared, the structure went with it.

The worst feature of the pattern is its delay. The mice thrived for 315 days before the beautiful ones appeared. Aldrin was fine eating dinners with prime ministers, but drinking heavily a year later. Brickman published the lottery paper in 1978 and walked off a roof in 1982. By the time you notice your spirit has gone, your body has already started the count toward the second death. So the work is to act before the question presses on you, not after.

Several moves appear to help. Calhoun spent the last decade of his career building enrichment universes designed to give mice puzzles they could solve. Frankl, who had less material than anyone, made his version concrete in a sentence he repeated for 50 years: “He who has a why to live can bear almost any how.” Aldrin found his way out by inventing a new problem, a permanent human settlement on Mars he will probably not live to see. The findings line up across the laboratory, the death camp, and the lunar surface.

  • Invent a problem before the world removes yours
    Buzz Aldrin is 96 years old and found his way out of the magnificent desolation by the only route that has ever worked for anyone in his position. He picked Mars and threw himself at it. He gave himself a fresh moon to walk on, this time before he ever got there. The choice was practical. When the system stops giving you problems, you have to manufacture them yourself, and it has to be big enough that no machine can finish it for you. The why has to be yours.
  • Choose scarcity by hand
    Cook the meal you could have ordered. Walk the route you could have driven. Repair the appliance you could have replaced. Read the book that resists you. Calhoun’s later universes kept the mice physically and mentally engaged with puzzles they could solve, and the enriched mice did better than the mice in heaven. Some friction is the architecture of a life, and when the systems strip it out, you have to put it back yourself.
  • Hold the small obligations close
    Most of what made the Japanese salaryman who died alone in his apartment vulnerable was not poverty. It was the absence of anyone who would notice. Sometimes unsolvable questions like ‘what is my purpose?’ lose their force upon lifestyle fixes. In other words, seeing friends regularly and getting enough sleep can go a long way to solving existentialism.
  • Don’t outsource the friction that hurts
    The conversation with the colleague that requires you to find words. The blank page on a Saturday morning. The slow walk to the friend’s house instead of the message. AI is now offering to absorb all of it, and some of it should not go. Don’t live as a piano key.
  • Forge the meaning
    Don’t go looking for it. Meaning is made, not found. It gets built at the kitchen table, in the decision about what you will spend the rest of your time on. Invest energy in causes greater than yourself, and find joy in the doing, not in the arrival.

The bottom line

None of this is new. Marcus Aurelius wrote some of it down in his journal 1800 years ago. Tolstoy summarised it near the end of his life: be happy, be kind, be useful. The reason to write it down again is that the conditions Calhoun built into a 9-foot pen are about to arrive in slow motion and without a steel cage. Most of the people now living will see them in their lifetimes.

The last mouse in the mouse heaven died on May 23, 1973. The colony had been alive for 4 years and 10 months. Calhoun, watching the empty pens through the glass, titled his next paper “Death Squared.” The first death, he said, was of the spirit. The second was of the body. The first is the one we can still refuse.

The machines are arriving with food and shelter. You have some time. Pick your why. Choose the friction. Find your people.

Resources

  1. Universe 25 Experiment (Article)
  2. Buzz Aldrin Battled Depression and Alcohol Addiction After the Moon Landing (Article)
  3. Man’s search for meaning (Book)
  4. Lottery winners and accident victims: is happiness relative? (Paper)
  5. The complex effects of retirement on health (Paper)
  6. Mental retirement (Paper)
  7. He won Powerball’s $314 million jackpot. It ruined his life (Article)
  8. Results of the basic income experiment (Article)
  9. How Will AI Affect the Global Workforce? (Article)
  10. Impact of later retirement on mortality (Paper)

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