There is a moment in many careers — usually somewhere in the middle — where a person stops being a learner and starts being an expert. This sounds like progress. Sometimes it is. But it can also be the beginning of a slow decline.
The expert mindset, at its worst, becomes a filter that screens out information that doesn’t fit what you already know. You’ve built up years of experience, developed strong intuitions, learned the patterns. And that accumulated knowledge becomes a lens through which everything new gets evaluated — and often dismissed, because it doesn’t match what experience has taught you.
The world, meanwhile, keeps changing.
The professionals who remain effective over long careers aren’t the ones who know the most. They’re the ones who stayed curious. Who continued to treat learning as a core professional activity rather than a stage they moved through early in their career.
This doesn’t mean chasing every new trend or abandoning expertise the moment something new appears. It means holding expertise lightly enough to update it. It means being genuinely interested in what you don’t know. It means creating space in your professional life for learning — for reading outside your immediate domain, for conversations with people who think differently, for taking on work that stretches beyond your current comfort zone.
One practical discipline worth building: every six months, identify one thing — a skill, a concept, an area — that’s adjacent to your current work and worth understanding more deeply. Not because you’ll necessarily use it immediately. But because professional breadth creates resilience. The more contexts your thinking can travel to, the more stable you are when any one context changes.
Expertise is valuable. Curiosity is what keeps it alive.