Why the Smartest Person in the Room Stops Learning
When I first arrived at Harvard taking classes as a doctoral student, I didn't speak much in class. My English was still rough, the discussions moved fast, and I spent most of my time trying to keep up rather than contribute. One of my professors noticed. He didn't just encourage me to talk more: he changed how he ran the class. He slowed down, he paused to summarize key points and created space. Those small structural adjustments we incredibly helpful to me: I found my voice.
I've thought about that experience many times over the past two decades, because it taught me something I keep encountering in my work with senior leaders: the conditions around us shape what we do more than our intentions.
And one important condition is the relationship between expertise and curiosity. Because what I've seen, again and again, is that they tend to move in opposite directions. The more expert we become, the less curious we tend to be. And the less curious we are, the more brittle our expertise becomes.
The expertise trap
The leaders who reach the top of organizations are almost always brilliant. They've spent decades building pattern recognition, domain knowledge, and judgment that is genuinely impressive. They've earned their confidence, but that confidence has a hidden cost.
At a certain point, knowing becomes a substitute for learning. The leader stops updating their mental model. They stop being genuinely surprised. They start treating every new situation as a version of something they've already seen… and they're usually right, which reinforces the habit.
Here's what I've observed when this happens.
First, the leader stops asking for input in areas where they feel confident. The reason behind this behavior is not arrogance: it is efficiency. They've seen this pattern before. They know the playbook. Why spend twenty minutes gathering opinions when they can make a good call in two?
Second, and this is the more corrosive effect, the people around that leader start self-censoring. Nobody sends a memo saying “please stop sharing your ideas.” It's subtler than that. It's the accumulated experience of watching the most senior person arrive at every meeting with a fully formed view. The implicit message is that the thinking has already been done. Contributing feels redundant, or worse, risky.
I worked with a chief scientific officer at a pharmaceutical company who embodied this pattern. She was, by any measure, extraordinary. She had been instrumental in developing two breakthrough therapies. Her scientific judgment was respected across the industry. In meetings, she was almost always right.
But her team had stopped bringing her problems early. They'd wait until they had a polished recommendation, because presenting something half-formed to someone that sharp felt dangerous. By the time she saw emerging challenges, the window for creative solutions had already narrowed. She was receiving information that had been filtered and sanitized by people trying to match her level of certainty.
She was the smartest person in the room. And she was also the most isolated.
What curiosity actually requires
In Rebel Talent, I wrote about curiosity as one of the five core talents that set rebels apart: their ability to wonder, to resist the comfort of expertise, to stay perpetually open to surprise. But I want to be more specific here about what curiosity actually requires in practice, especially for senior leaders.
Curiosity is a behavior. And like all behaviors, it's shaped by the environment around it.
For a senior leader to stay genuinely curious, three conditions need to be present.
The first is psychological permission to not know. In many executive cultures, not knowing feels like a liability. Leaders are rewarded for decisiveness, clarity, and confidence. Admitting uncertainty (saying “I don't know” or “I hadn't considered that”) can feel like weakness. Research my colleagues and I have conducted shows that people in power positions are less likely to take advice from others, even when that advice would improve their decisions. Power makes us more reliant on our own judgment, not less. So the leader who openly says “help me think about this” is doing something courageous, because everything in the incentive structure around them pushes the other way.
The second condition is exposure to disconfirming information. Curiosity dies in echo chambers. If every data point, every report, every conversation confirms what you already believe, there’s little to be curious about. The leaders who stay sharp deliberately seek out perspectives that challenge their own. They do not enjoy being wrong, but they understand that the feeling of being challenged is the feeling of learning. When we seriously consider the opposite of what we believe, we actually make better decisions because the exercise forces us to examine assumptions we had stopped questioning.
The third condition is time. This is the one nobody wants to hear. Curiosity requires cognitive slack: the space to wonder, to follow a thread that doesn't have an obvious payoff, to sit with a question long enough for it to deepen. I think of Massimo Bottura, the chef behind Osteria Francescana, who I spent time with while researching Rebel Talent. Here is a man at the very top of his field (three Michelin stars, the World's Best Restaurant award) and he spends his mornings sweeping the pavement outside the restaurant, personally inspecting produce deliveries, eating lunch with his staff. He makes space. He stays in contact with the raw material of his work, rather than retreating into the abstractions of management. That contact is what helps him keep his creativity alive. In many executive calendars, by contrast, there is no such space. Every hour is allocated. Every meeting has an agenda. Within those constraints, curiosity becomes a luxury that efficiency can't afford.
A practice I've seen work
One of the most effective practices I've introduced with clients is simple. I call it the learning audit. Once a quarter, the leader sits down alone (no agenda, no slides, no team) and answers three questions in writing.
What have I changed my mind about in the last ninety days?
What surprised me that I didn't act on?
Who on my team knows something important that I haven't asked them about?
The first question is the diagnostic. If you can't name something you've changed your mind about in three months, that's a signal. Not that you're wrong, but that your mental model hasn't been updated. And in a world that changes as quickly as ours does, not learning is its own kind of risk.
The second question surfaces the information you've been filtering out. We all do this. A data point arrives that doesn't fit our narrative. We acknowledge it briefly and move on. The learning audit asks you to go back and pick it up. Maybe it still doesn't matter. But maybe it's the early signal of something that deserves your attention.
The third question is about people. In my experience, the biggest untapped source of insight in any organization is the knowledge that exists inside people's heads but has never been explicitly shared because nobody asked. When I was that young Italian doctoral student sitting silently in class, I had perspectives to offer. I just needed someone to create the conditions for me to share them. The same is often true for the quietest people on any leadership team.
The leaders who last
I have spent over twenty years studying how people behave in organizations, and I see a consistent pattern: the leaders who sustain their effectiveness over time maintain a wide gap between what they know and what they're willing to question.
That gap is curiosity. And keeping it open takes effort, because expertise is constantly trying to close it. Every success, every validated prediction, every moment of being right narrows the aperture a little more. Until one day, you look up and realize you haven't been genuinely surprised by anything in months.
The smartest person in the room carries a particular burden: They have to work harder than anyone else to stay open, because everyone around them has already decided that the thinking is done.
My advice: don't let them be right about that.
What have you changed your mind about recently? And if the answer is “nothing,” that itself is worth being curious about.