
A few weeks ago I wrapped up a short series on sensemaking. The explicit goal of that series was to give you better methods to make sense of a potentially disruptive new technology — which at the time of publication (and probably for a few more years yet) will be about AI. But the series was about sensemaking in general, and the ideas we explored together are applicable whenever you have to make sense of new developments in investing or business. This means that the methods may be adapted to make sense of politics, or social change, or — god forbid — war.
I had an ulterior motive to writing that series, though. One of the nice things about the serial nature of Commoncog is that I may introduce a new concept as a foundation, and then build on that concept in the subsequent weeks or months. So I’ll be honest with you: I wrote that series because I needed to introduce the Data-Frame Theory of Sensemaking.
Why? Well, you actually probably already know why. In my essay on the Data-Frame theory, I left a throwaway paragraph:
I don’t want to put too fine a point on this, because this is important. The observation that experts construct different frames compared to novices is actually profound. Frame construction is the bit of tacit knowledge that matters. It is the bit that accelerated expertise training programs attempt to train for. If that isn’t enough, frame construction is directly linked to insight generation. Insight generation is really important! If you study cases of business strategy, every winning strategy boils down to a few small insights that frame the problem advantageously — which the rest of the strategy is then built around. Richard Rumelt calls this the ‘kernel’. Roger Martin calls this answering the twin questions of “where to play” and “how to win”. The point is: if you can frame the problem you’re facing properly, you have half the problem solved.
You might’ve read that and gone ‘huh’. But it gets better.
Earlier this year, I wrote Our First Accelerated Expertise Course, shortly after running Cohort Two of Speedrunning the Idea Maze. In that piece, I said that I’d finally figured out how to apply Cognitive Transformation Theory — one of two theories of accelerated expertise, and one that I never really understood how to use. I said that I’d explain what it is and how it works in a future blog post. Well, here we are.
It turns out that in order to understand Cognitive Transformation Theory, you need to first understand the Data-Frame Theory. Since we have both of those things now, we can tie things together. We can also — finally — talk about how to use this in our lives.
The core idea is ridiculously simple.
That’s it. That’s the entire shebang in two sentences.
But ok, this isn’t actually useful. We need more detail in order to put this idea to practice. I’m going to assume you’ve read the essay on the Data-Frame theory, because I’m going to start using theory-specific terminology now:
You answer that question, and you’ll have gotten closer to expertise acceleration.
“Wait,” you say, “I don’t buy this. What about deliberate practice? What about maths? You don’t get better at maths by ‘getting better at frame construction’. You get better at maths by grinding at math problem sets! This is the known best way to get better at maths!”
I hear you. We’ll tackle all of these concerns in future essays. (If you’re a Commoncog member, you might already know the answer, since you have access to our private Q&A with former professional mathematician David Bessis).
But for now, I want to show you two things.
First, I want to point out that this central focus on ‘sensemaking’ in expertise has actually been hiding in plain sight all this while.
Long term Commoncog readers would recognise the following diagram, which shows us the Recognition Primed Decision Making (RPD) model, which we’ve talked about here and here.

RPD is powerful because it tells us what expert intuition actually is, and it allows you to pick the brains of the experts around you. Here’s a quick recap. When an expert is faced with a typical situation in their domain, they pattern match using the same part of their brain that does facial recognition (implicit memory), and they automatically generate four by-products of recognition:
However, if at any point their expectancies are violated, or if they cannot immediately recognise the situation they are facing, they will fall back into … sensemaking. You could say that the red bit in the diagram is basically explained by the Data-Frame Theory of Sensemaking.
(With one small caveat: Gary Klein has never explicitly come out to say this).

Training that red bit of the RPD model is just as important as training overall pattern matching. Yes, you do want to get good enough to do recognition-primed decision making. (This is what you may call “tacit skill”, or “unconscious competence”, or “expert intuition”, and it’s why experts aren’t easily able to explain how they do what they do). But it’s also important to train frame construction. And in fact getting better at frame construction helps with building expert intuition.
Jared Peterson, who currently works for Gary Klein, has a piece where he describes the formation of Naturalistic Decision Making (NDM). NDM, of course, is the field of applied psychology that is most closely associated with tacit knowledge extraction and accelerated expertise. Peterson writes:
(…) Around the same time, other researchers in similarly high stake domains were discovering the same thing. In 1989, these researchers gathered in Dayton, Ohio not realizing what they were staring. At that first conference, they hadn’t yet conceptualized themselves as a distinct field of study, and they certainly didn’t have a name. But at that conference a few themes emerged:
- They were interested in complex, real-world (naturalistic) environments characterized by time pressure, uncertainty, ill-defined goals, high personal stakes, and other intricacies. Fields like firefighting, law enforcement, tactical decision-making, medicine, aerospace, etc.
- They were interested in experienced experts who consistently performed well despite complexity. Not novices, and certainly not undergrads.
- How people made sense of situations often mattered more than deliberating over predefined options (emphasis added).
The third theme stands out a little. While the first two themes identify similarities in what and who they studied, the third was more an insight that many of them had independently discovered, and which Klein had started to pull the string on in that initial practice interview with the fire commander.
And so it turns out the entire field of Naturalistic Decision Making has been working to understand how experts make sense of situations and how to train people to do the same for the past 30 years. In other words, frame construction is how you get accelerated expertise. This is what I mean when I say that frame construction is actually the bit of tacit knowledge that matters.
Arguably, this is the bit that will remain important as AI invades our workplaces.
But ok, enough preamble. I want you to experience this for yourself.
The quickest way to get you to understand how this training approach might work is to demonstrate it to you.
I want you to do the following exercise. Trust me, this will not take very long, and will be quite enjoyable to do, assuming that you like daydreaming.
(Yes, daydreaming. You know how it feels like when you’re on a long car ride and you’re staring out the window and just letting your thoughts wander a little? Yeah, this should feel like that. That is actually what it feels like when you’re learning to sensemake better.)
A few weeks ago I published a bunch of new cases around the concept of ‘Business Expansion’, in preparation for this exercise. The idea itself is quite easy to understand, and very familiar to anyone who has had even a little business experience: if you’ve been doing business for a bit, you might have already noticed that plenty of businesses die from growth. The simplicity of this concept makes it ideal for our little experiment. For instance, good business expansion is an aspect of business skill that is quite easy to spot — experienced businesspeople are cautious when growing their businesses, for they know that growth can kill them. But they’re also not too cautious, for they know no growth in a dynamic industry will also kill them. Acquiring this calibration seems quite valuable! As a result, I’ve put together a sequence of cases demonstrating both successes and failures in business expansion.
I want you to do the following.
Here’s what the case reaction looks like at the bottom of each case:

There are two more things you may do:
That’s it. That’s the entire experiment!
Here is what this accomplishes, and what you should — fingers-crossed — experience:
The more pedagogically inclined folks here might already notice that this is actually a generalisable training method. You may apply this style of teaching to computer programming, to developing taste in movies, to leadership skills, to business valuation, to M&A, and so on.
But I want you to give this a go first. Leave comments in the members forum here and let me know how the experiment went for you (if you have difficulty logging in, instructions are available here). We’ll continue talking about sensemaking and expertise in a future essay. Till then.