Right now, at whatever age you happen to be, it probably feels like you’ve arrived. You did your growing up. You made the dumb mistakes and learned from most of them.
You figured out what you like, who you are, what you believe. And here you are, finally, the finished version of yourself.
In one way, that feeling is fair. You are the most-evolved you that has ever existed, because you’ve had the most time to become it. Every year so far has gone into building the person reading this sentence.
But whatever age you are, you’ve almost certainly lowballed how much you’re still going to change. And you’re not alone in it. Everybody does it, at every age, and they’ve been doing it their whole lives without noticing.
The study that caught everyone doing it
Three psychologists, Jordi Quoidbach, Daniel Gilbert, and Timothy Wilson, went looking for this. They measured the personalities, values, and preferences of more than 19,000 people, ranging in age from 18 to 68, a big enough crowd to catch something true about nearly everyone.
Then they ran a simple split. They asked some people to look backward and report how much they’d changed over the past ten years. They asked others to look forward and predict how much they’d change over the next ten.
Same questionnaire, same traits and tastes and values, just pointed in two different directions in time. One group remembering, the other group guessing. And when they lined up the two sets of answers, a very consistent gap opened up.
What they found, at every single age
Everyone remembered changing a lot. The people looking back, at 25 or 45 or 65, all said the same thing: yeah, I’m pretty different from who I was ten years ago. My tastes shifted, my values moved, I’m not that person anymore.
But the people looking forward all said the opposite. They expected the next ten years to leave them more or less as they are now. They could see how much they’d changed, and still assumed the changing was basically done.
To see the gap, line up two people a decade apart. Take a 40-year-old’s guess about how much they’ll change by 50, and set it next to a 50-year-old’s memory of how much they really changed since 40.
It’s the same stretch of life seen by two people, and the 50-year-old reports far more change than the 40-year-old ever saw coming. That pattern held at every age they tested.
People were sure the changing was mostly behind them, and at every age they were wrong.
One caveat on how they measured it, because it matters. They didn’t follow the same people for ten years. They compared what one group remembered against what another group predicted.
So a skeptic could argue people are over-remembering the past rather than under-guessing the future. The researchers checked their results against longer-term data and the effect mostly held, but it’s fair to call this a snapshot rather than a decade-long stopwatch.
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Why we keep getting it wrong
Researchers have a name for the whole pattern, the end of history illusion: at any given moment, we tend to feel that we’ve just now become our final selves.
And it comes down to a lopsided little trick of the mind. Remembering is easy, and imagining is hard.
When you look back, you’ve got real material to work with. You can picture the person you were ten years ago, the clothes, the opinions you’d now argue against, the stuff that used to matter and doesn’t anymore.
It’s vivid and specific, so the change is obvious. Of course you’re different. Look at all that.
When you try to look forward, there’s nothing there. You can’t picture a version of yourself you haven’t become yet, because the details don’t exist.
Your brain reads that blank space as evidence, concluding that if you can’t see any change coming, there must not be much coming.
But that blank isn’t proof that nothing’s ahead. It just means you can’t see it from here, the same way you couldn’t have predicted, ten years ago, the specific ways you’d shift into the person you are today.
You didn’t see those coming either. You never do. The changing doesn’t stop; only your ability to picture it does.
The illusion doesn’t just sit in your head, either. It reaches into real decisions. The same researchers found that people will pay to lock in their current tastes, betting on a version of themselves that won’t hold.
Asked how much they’d spend to see today’s favorite band play in ten years, people pay a premium. Far more than someone the same age pays to see the band they loved a decade ago and have since outgrown.
So we hand money and plans to a future self we’ve assumed will want what we want now. The tattoo that meant everything. The five-year plan built around a goal that stopped mattering by year three.
The illusion has a price tag, and we pay it without noticing.
Why being unfinished is the good part
It’s tempting to find all this a little unsettling. If the you of ten years from now is going to look back on today’s you the way you look back on your younger self, then which version is the real one?
What can you even trust?
But turn it over, and it’s the best news in the piece.
The illusion feels like safety. I’ve arrived, I know who I am, this is the final me. What it’s doing underneath, though, is telling you that whoever you are right now is permanent, including the parts you’d rather not keep.
The stuck feeling. The thing you’re sure you’ll never get over. The limit you’ve decided is just how you are.
None of that is as fixed as it feels. The person who’s bored, or stuck, or certain the ache will never lift is going to keep changing anyway, whether they can picture the changed version or not.
As Gilbert put it, human beings are works in progress that mistakenly think they’re finished.
You’re not finished. That’s not a problem to fix or a flaw to fret over. It’s the one guarantee that the parts of your life you don’t love yet get no final say. You get to keep becoming someone. That was never the bad news.
