You probably know two adults who started out in roughly the same place.
Maybe you went to school with them. Maybe they’re cousins, or two people from your old job, or both of your parents. In their twenties, they looked similar — comparable intelligence, comparable opportunities, a shared sense of what they were about.
If you’d had to pick which one would be more interesting to talk to thirty years later, you couldn’t have.
You could pick now.
One of them, somewhere along the way, kept going. In their sixties, they’re still reading, still arguing with themselves, still occasionally surprising you.
The other one settled in. Their thinking arrived somewhere in their early thirties and stayed there, and the conversations you have with them now are mostly conversations you’ve had with them before.
People reach for a lot of explanations for this.
One of them got lucky. One of them married well. One of them had more time, more money, more freedom to keep learning. Sometimes those things matter. But research on what psychologists call intellectual humility points at something smaller — a habit so ordinary you’d miss it if you weren’t looking, that seems to do most of the work of separating these two people over time.
It’s the willingness to be wrong out loud, and most adults stop doing it
Both of these people were probably willing to be wrong, once.
In your early twenties, being wrong is the texture of everything. You’re new at your job, new at being on your own, new at most of the conversations you’re in. Saying oh, I didn’t realize that or you’re right, I had that backwards is just how the days go. You haven’t built up enough of a self yet for being corrected to feel like much.
What happens for most people, somewhere in their late twenties or thirties, is that this stops being comfortable. You’ve built a self by then. You have opinions you’ve defended, positions you’re known for, a sense of what you think about things. Being wrong starts to feel like something is being taken from you instead of given to you, and the feeling becomes harder to absorb than it used to be.
What separates the two adults isn’t that one of them stopped feeling that. They both feel it.
Research on intellectual humility shows that the people who keep updating their views over time aren’t people who lack ego or don’t mind being corrected. They’re people who feel all of that and say you’re right, I hadn’t thought of it that way anyway. Whatever quiet bargain most adults make at some point — to protect themselves by not entering rooms where they might be caught not knowing — these adults didn’t make.
It isn’t a personality trait, exactly. It’s closer to a small, repeated decision, made over and over in conversations that don’t seem to matter at the time. And the two adults you’re picturing made it differently, a few thousand times each.
One of them is still letting things change them. The other one isn’t.
From the outside, both of them look like they’re still engaged with the world.
They both still read books. They both still take the course, listen to the podcast, or follow the news. They both, if you asked, would describe themselves as someone who likes to learn. By any measure of input — pages read, hours of audio consumed, articles bookmarked — they might even look like they’re doing the same thing.
But one of them is letting the input touch the thinking, and the other isn’t.
The first adult finishes a book, and something inside them is a little different — a view has loosened, a position has shifted, an old certainty has gotten a question mark put next to it.
The second adult finishes the same book, and what they have is a finished book. The book was a pleasant experience. It didn’t change anything, because nothing was open to being changed. Information without revision is just collection. You can read a hundred books that should have moved something, and arrive on the other side of all of them in exactly the place you started.
This is the version of stalled-out that’s hardest to spot, because it doesn’t look like being closed off. It looks like being well-read.
The person doing it doesn’t know they’re doing it — they had the same experience of reading the book as anyone else, they just didn’t have the part where something inside them shifted in response.
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Both of them used to be wrong about things. Only one of them remembers.
Something specific comes up if you talk to either of these adults for long enough, and it’s one of the cleaner ways to tell which conversation you’re in.
If the adult who’s still updating mentions, at some point, something they used to believe and don’t anymore, they do it casually.
God, I used to be so sure about that. I was kind of an idiot about it for a while. It’s offered the way you might mention that you used to love a restaurant and then realized it wasn’t actually that good. The change is the interesting part. The wrongness is just how they got here.
The other adult almost never offers anything like that. If you ask directly whether they’ve changed their mind about anything important in recent memory, the answer is usually no, and sometimes it’s said with a certain pride.
The views they hold now and the views they held a long time ago are described as the same views, and the consistency is described as a kind of integrity. I’ve always known what I believed.
The thing is, they were almost certainly wrong about things, the same way the other adult was.
They had opinions in their twenties they wouldn’t endorse if they really looked at them, beliefs that were a product of who they were around or what was in the air at the time. Everyone does. What’s different is that one of them can hold the memory of having been wrong, and the other one can’t, and so the past has been quietly rewritten to be already correct.
The willingness to be wrong out loud is a small thing.
It happens in low-stakes moments — in arguments with friends, in meetings, in conversations about books and movies that won’t matter in a week. There’s no big decision where someone chooses to be one kind of adult or the other. The choice happens a thousand times in conversations that don’t feel like choices, and almost all of them feel uncomfortable in the moment and forgettable five minutes later.
