The Lottery Winner’s Regret
Imagine waking up tomorrow with $20 million in your bank account. Picture the mansion, the freedom, the end of financial worry. Now imagine—if you can stand the thought—waking up five years later and feeling exactly as happy as you do right now. Not because tragedy struck, but because your brain did what brains do: it normalized the extraordinary.
This isn’t hypothetical. In 1978, psychologists Philip Brickman, Dan Coates and Ronnie Janoff-Bulman tracked down lottery winners and victims of catastrophic accidents. The results were baffling and brutal. Within months, the winners’ euphoria evaporated. Within a year and a half, both groups—the newly wealthy and the newly disabled—had drifted back to their previous levels of happiness. The Ferrari became furniture. The wheelchair became baseline. The event that was supposed to change everything changed almost nothing.
Welcome to the hedonic treadmill, the most inconvenient truth in psychology.
The Myth of Arrival
The theory, first coined by Brickman and Donald Campbell in 1971, suggests humans possess a «set point» for happiness—a biological thermostat that stubbornly resets to its original temperature regardless of external conditions. For decades, this led to a kind of fatalism. If we’re all destined to return to our baseline, why bother pursuing the promotion, the renovation, the next iPhone?
But here’s where the story gets interesting. The set point isn’t a prison sentence. It’s more like an anchor—heavy, yes, but not impossible to drag.
Diener, Lucas and Scollon upended the old model in 2006, demonstrating that our baselines are actually positive to begin with (most people hover above neutral), and more importantly, they move. A 17-year longitudinal study by Fujita and Diener found that only 25% of participants had completely stable happiness trajectories. Nine percent experienced significant, lasting shifts. Genes, it turns out, account for roughly 30% to 50% of our happiness variance—substantial, but hardly the whole story. The remaining 50% is up for grabs, split between circumstances we can’t control (about 10%) and intentional activities we can (about 40%).
«We are highly adaptive creatures,» novelist Ian McEwan observed. «The predictable becomes, by definition, background.» That adaptive genius kept our ancestors alive, preventing them from dwelling on yesterday’s hyena attack while today’s hunt demanded attention. But in an economy designed to sell us the next dopamine hit, that same mechanism becomes a trap.
Why Your New Phone Stops Being Magical
The mechanism is elegant in its cruelty. Call it «abundance denial» or simply hedonic adaptation: when your circumstances improve, your expectations rise in tandem. The iPhone 5 thrilled you; the iPhone 8 merely utilities you; the iPhone 15 leaves you anxious about the iPhone 16. Material goods are particularly susceptible to this erasure because they sit in your environment as constant reminders of their own ordinariness. The new car ceases to be «new» exactly when the payment schedule starts feeling old.
Richard Easterlin noticed this pattern at the national level in 1974, spotting what became known as the Easterlin Paradox. Across countries, richer people report being happier than poor people at any given moment. But over decades, as nations grow wealthier, their average happiness flatlines. American real incomes have more than tripled since the 1940s; American happiness hasn’t budged. China underwent explosive economic growth between 1990 and 2010—roughly 10% annually—while life satisfaction remained unchanged.
The culprits are two cognitive habits we can’t seem to quit: habituation and social comparison. We adapt to our past gains, making yesterday’s luxury today’s necessity. And we measure ourselves against moving targets. When your neighbor also gets a raise, your relative status stays static even as your absolute wealth climbs. As economists Clark, Frijters and Shields demonstrated, the «relative income» coefficient in happiness equations nearly matches the absolute income coefficient—meaning a rising tide lifts all boats, but leaves all passengers at the same deck level.
The Experience Paradox
So if the treadmill is real, and stuff is the fuel, what’s the escape hatch?
In 2003, Leaf Van Boven and Thomas Gilovich published a landmark finding: experiential purchases generate more durable happiness than material ones. The memory of a hiking trip improves with distance; the laptop depreciates. Experiences resist social comparison—you’re less likely to feel inadequate comparing your vacation to someone else’s than comparing your watch to their Rolex. They integrate into identity—you are the sum of your memories, not your merchandise. And they usually involve other people.
But there’s a plot twist. Recent research by Yang, Yu and Yu reveals that it’s not experiences per se that ward off loneliness—it’s the social connection they facilitate. Solitary experiences don’t carry the same protective power. Similarly, Weingarten and colleagues found in 2022 that material and experiential consumption aren’t actually enemies; they can add to each other. A vacation home (high material, high experiential) can maximize happiness precisely because it bridges both worlds.
Even more confounding: the advice to «buy experiences» doesn’t work for everyone. «Material buyers»—people who genuinely prioritize possessions—report equal happiness from buying things or experiences. Only «experiential buyers» show the expected boost from doing rather than having. The prescription must fit the patient.
The 40% Solution
If circumstances account for only 10% of our happiness and genes for 50%, that leaves 40%—a massive slice of subjective well-being—controlled by intentional activity. This is Lyubomirsky, Sheldon and Schkade’s archery target model: genetics are the bow, circumstances are the wind, but you are the archer.
Sustainable happiness, then, requires becoming a behavioral engineer, designing interventions that resist adaptation. The research points to several high-leverage strategies:
**Variety is the spice of retention.** The mind wanders 47% of the time, and it wanders toward discontent. Changing your actions rather than your circumstances prevents the fade. Rotate your gratitude practices; vary your acts of kindness; introduce novelty even into good habits before they become invisible.
**Purpose before possessions.** When 70% of Chinese survey respondents equate success with material accumulation—a number that mirrors western capitalist values—happiness stalls despite economic miracles. But altruistic goals, personal mastery, and autonomy satisfy deeper psychological needs that don’t depreciate. Diener’s 2006 revision specifically noted that «persistent behaviors such as pursuing altruistic goals can reset a person’s happiness set point in a positive direction.»
**Reframe the narrative.** Gratitude works not through naive optimism but through attention allocation. It’s hard to habituate to a benefit when you actively notice it daily. Savoring—the ability to truly attend to a positive experience in the moment—creates a bulwark against the fade.
**Know your adaptation rate.** Some people are simply slower adaptors. High extraversion and low neuroticism correlate with slower adaptation to negative events. If you’re naturally sensitive to change, your treadmill runs faster, requiring more frequent strategic interventions.
The Policy Implications
What does this mean beyond individual therapy sessions and gratitude journals?
For one, it collapses the rationale for growth-at-all-costs economics. If raising GDP doesn’t raise happiness after basic needs are met—and if rising material aspirations actually correlate with lower well-being—then different metrics matter. The data suggests that a 1% increase in working hours requires a 2.4% GDP increase just to keep happiness neutral. Unemployment benefits, environmental quality, and inflation control show stronger happiness returns than marginal income growth.
It also suggests that the digital economy, with its infinite scroll of others’ curated highlights, represents a kind of adaptation accelerant. Social media amplifiers multiply comparison opportunities, potentially speeding up the treadmill just as we need to slow it down.
The Mutable Set Point
The most hopeful finding in this literature is also the most overlooked: adaptation is not universal. Headey’s 2008 research showed that people do not fully adapt to chronic disability or illness—the set point can be permanently lowered by sustained adversity. Conversely, it can be permanently raised by sustained intentional effort. The 1970s model of a fixed, neutral set point has been «substantially revised,» as Diener put it. We are not thermostats; we are landscapes that can be gradually terraformed.
This doesn’t mean the pursuit of happiness is easy. It means it’s possible. The lottery winner’s mistake wasn’t winning; it was thinking the money would do the work. The research is clear: lasting happiness comes not from changing what’s outside, but from changing what you do with what’s inside the moments that already exist.
That $20 million? It buys you options. But the happiness—that requires you to keep running without a treadmill beneath your feet.
