Expertise as a Blind Spot

When I started teaching real estate finance at Georgetown, I knew I was going to have to figure out how to explain cap rates without hiding behind the fact that everyone in the industry already knew the words.

Cap rates are part of the basic vocabulary of commercial real estate. People use the term constantly, and the fluency with which they use it signals experience, credibility, and belonging in the room.

The funny thing is that plenty of very experienced people would have a hard time explaining what a cap rate actually is.

Not because they are not smart or do not understand real estate. Usually the opposite. They have used the term for so long that the vocabulary and the concept have fused together.

The simplest explanation I eventually landed on is this: a cap rate is a proxy for risk.

The formula matters, and the market context matters, but underneath all of it is a pretty simple idea. The market is assigning a relative level of risk to an income stream, and that judgment affects what someone is willing to pay for it.

When I started teaching it that way, I noticed something I did not expect. Students who were completely new to commercial real estate often grasped the concept faster than students who had internships or prior exposure.

The students who already knew the words had something extra to unlearn.

That has stayed with me because I think it says something important about expertise. Expertise gives us speed, pattern recognition, shorthand, and judgment. All of that is real and valuable. It is also exactly what lets us stop consciously examining things we once had to think through from first principles.

That is useful most of the time. It is also where a blind spot can form.

The problem is not that experts know less. It is that we can become so fluent in a frame that we stop noticing it is a frame.

I see the same thing in leadership and organizational work. The leader who has been successful by trusting instinct stops asking whether the instinct is still calibrated to the current situation. The organization built around a particular operating model stops asking whether the model still serves the strategy. The team that has been rewarded for moving fast can stop noticing when speed is now getting in the way of judgment.

None of those is really a knowledge problem. The expertise is still there.

The issue is that what worked before starts getting too much authority over what is true now.

That is where the jurisdiction idea in Near Enemies has become useful to me. Expertise absolutely has a role in the decision. It should inform what we notice, what patterns we recognize, and what experience tells us is likely. But expertise should not settle the question before the current facts get a hearing.

An old pattern is not automatically the right answer to a new context just because it has been right before.

And that is one reason outside perspective can matter. Not because the outsider knows your business better than you do. Usually they do not. But they may be able to see the frame precisely because they have not spent years living inside it.

In a classroom, a student who does not yet know the vocabulary can force the concept back into view. In an organization, an outside advisor can sometimes ask the question that feels basic or beside the point because everyone inside stopped needing to ask it years ago.

That is a lot of the diagnostic work I do through Residy: looking for the place where fluency has become invisibility, where a shorthand has started doing more work than it should, or where something familiar has stopped being tested simply because it feels obvious.

The fix is not to become less expert. I am fairly sure none of us wants that.

It is to stay expert without letting expertise close the case too early.

What are you so fluent in that you have stopped noticing what you are assuming?