Since 2000, I've watched the word "expert" get handed out like a participation trophy.

LinkedIn has a lot to answer for.

Anyone with a Canva account and a hot take can post a carousel, rack up impressions, and call themselves a thought leader. That's not expertise. That's a content strategy.

Real expertise is rarer and tougher to fake than most people think. Here's how I test for it.

Not recite them. Not copy-paste a definition. Actually grasp them, meaning you understand why they work, where they break down, and how they connect to things you already know.

Surface-level familiarity isn't expertise. It's a Wikipedia entry with better delivery.

Concepts that only live in your head aren't expertise. They're potential. The real question is: have you put it to work in conditions that didn't cooperate?

Real application means making calls under pressure, with incomplete information, when the textbook didn't quite cover this scenario.

Not explain it to yourself. Not sound smart in a meeting. Successfully transfer it so someone else can actually use it.

This is where most people stall. You can know something deeply and still be a lousy teacher. Genuine expertise closes that loop. It explains the concept, makes it sticky, and hands the other person something they can pick up and use.

Miss any one of these three? You're not an expert yet. You're on your way.

Here's where it gets more interesting.

Harold Hook built the Model-Netics framework on a deceptively simple idea: not all experience is equal. Logging hours doesn't automatically produce knowledge. Experience only turns into real learning and understanding when you can answer five questions about what happened:

Questions four and five are the ones that separate professionals from practitioners.

Most people accumulate exposure. They show up, something happens, and they move on. What they rarely do is close the loop on why they made that call and whether the outcome they got was actually the outcome they were aiming for.

That gap matters. Because if you did X and got Y but couldn't explain your reasoning or your goal, you didn't learn from it. You just experienced it.

Experienced it is not the same as learned from it.

One more thing. And this one's non-negotiable.

Real experts don't feel threatened by other people's approaches. André Houston Mack built a career as both a sommelier and a chef. Two disciplines. Some overlap, plenty of difference. Nobody who knows what they're doing dismisses the other side of the table.

The same goes here. If someone's doing good work in your field through a different method, framework, or background, that's not your problem to solve. Their success doesn't subtract from yours.

The experts I respect most are genuinely curious about how others got where they are. They ask questions. They find the overlap. They don't need to run someone else's approach into the ground to feel legitimate.

Nobody credible walks into a room and announces they're the expert. They answer questions. They do the work. Other people start nodding their heads.

That's the tell. The person loudest about their own credentials is usually the one most anxious about whether they hold up. Genuine expertise has a quiet confidence to it, not because it's humble for show, but because it doesn't need the room's permission.

Watch who gets referenced when the hard question lands. That's your expert.

And watch who people come back to. Not because they have to. Because they found something useful the last time.

You know the game. Someone asks a tricky question in a room, not because they want the answer, but because they want to watch the speaker stumble.

Here's the thing. When a real expert doesn't know something, they say so. Flat out. That intellectual honesty is only possible when you're genuinely secure in what you do know. The person who needs to trap someone to prove a point is telling you something about where they are in their own development.

Let people answer freely. Judge them on clarity, depth, and the willingness to say "I don't know, but here's how I'd find out."

That last part? That's expertise.

What's your version of this test? I'd like to hear how you tell the difference.