or Dunning-Kruger doesn't self-correct anymore.
> TL;DR. The Dunning-Kruger effect, that is, the difference between what people think they can do
and what they can actually do, used to close and self corrects with experience. My hypothesis that I introduce in this post is that AI keeps it open: it increases confidence and splits real capability into "with the tool" and "without the tool." For companies, that turns intrinsic capability from a productivity question into a governance one, and it is the capability that quietly erodes.
- The ending that used to be guaranteed (more or less)
- About the Dunning Kruger curve
- What AI changes
- The Gap that no longer closes
- Does it really matter?
- What it means for companies
1. The ending that used to be guaranteed (more or less)
Everyone knowns "Mount Stupid". Whether it’s the co-worker who’s researched a single online thread and wants to completely upend the operations of the team, or the new hire who’s watched a tutorial video and is convinced that everyone was doing everything incorrectly, we’ve all been there at one point or another.
The great thing about Dunning-Kruger is that there really is an ending to it. In the battle of experience vs. confidence, experience always wins. The difference between what you think you can do and what you can do is going to close on its own. There’s a simple, and really quite boring iteration that explains what happens: you do it, you break things, you mess up, but you figure it out. Until the day that your perception aligns with reality, the reality of the situation is going to keep the lights on.
2. About the Dunning-Kruger curve
Here's the thing: the chart that everyone think they know is actually not what it seems. The famous Dunning-Kruger curve, with its peak of confidence and valley of despair, didn't actually come from Dunning and Kruger. You won't find it in their 1999 paper, or in any of Dunning's later work. So, where did it come from? It started spreading like wildfire through management training and the internet in the mid-2000s. But the real study is actually pretty different. It compared how people thought they'd do with how they actually scored, and it was divided into four groups. The interesting thing is, the line on the chart just keeps going up - it doesn't peak and then drop like everyone thinks.
There's a lot of debate about this effect, and experts can't seem to agree on what it really means. Some researchers think it's just a statistical illusion, a combination of people naturally rating themselves higher than average and the phenomenon of regression to the mean. They point to studies that suggest this pattern is just a mirage, not really telling us anything significant. In my opinion, the key takeaway is that the pattern itself is real - that's what matters most to my hypothesis. What it actually signifies, however, is still up for debate.
I'm using this well-known chart on purpose, because it's familiar to everyone, not because it's the 1999 data. I guess, the point I'm making doesn't rely on the curve being entirely accurate. It only needs one thing that nobody disagrees with: people are not good at judging their own abilities, and the difference between what they can actually do and what they think they can do is significant. This gap is made even wider by a tool that affects how we perceive ourselves.
3. What AI changes
Two things change according to me. Let's go through them one after the other.
1. First, the confidence goes up. A beginner with an AI assistant produces work that looks from an expert.
The delivery is the proof, and the proof says "good". That's why the early peak of overconfidence climbs higher than it ever did on its own. The dip isn't as deep either. The moment of getting caught comes later and is softer, because the AI usage papers over the gaps that used to show you up. And the line never really drops, there is no longer a reliable point where harsh reality (failure, mistakes etc) forces a reality check, because the output keeps looking fine.
Figure 2a shows the one line changing.
2. Second, "what you can really do" stops being one thing. Before AI, your ability was a single number. Now it splits in two (Figure 2b).
Let me explain, there is what you can produce with the tool in hand, which is high and comes fast. And there is what you can do if the tool is taken away (I call it "Intrinsic"), which is lower, and which only grows through the practice the tool now does for you.
The grey dotted line is the old single curve. [Thierry ZOLLER]
4. The gap that no longer closes
Le'ts have the 3 lines on the same chart and the problem shows up (Figure 3).
Explanation : Perceived ability stays high. Assisted capability, what you make with the tool as support, sits just below it. "Intrinsic" capability, what is left when there is no tool, and it sits well underneath. Unlike the classic curve, none of them bend back toward each other.
Here is why. The old gap closed because reality punished overconfidence. You tried something, you failed where people could see, and the failure showed you where you were wrong.
There is a generational split, a split that matters most for the next generations."Intrinsic" is not the same for everyone. People who built real skill before they leaned on the tool keep most of it and lose it slowly.
"Intrinsic" is not the same for everyone. People who built real skill before they relied on AI keep most of it and lose it slowly. People who learned with the tool from day one quite possibly never build it at all. Same low line on the chart but two different reasons, and the second one gets worse over a generation.
5. Is the skill deteriating just theory?
Early scientific literature suggest the opposite and the evidence points the same way than my hypothesis, with one difference:
In a 2025 Gerlich [5] found that the more people relied on AI, the worse they scored on critical thinking, with "cognitive offloading" [8] as the mechanism. The effect supposefly highes among younger users.
A Microsoft and Carnegie Mellon survey found the same pattern from the other side: the more people trusted AI, the less critical thinking they did; the more they trusted their own skill [6]. An MIT study connceted people up to an EEG and found less brain connectivity in those who wrote with a LLM than in those who wrote without one [7].
But there is a difference :
The same research shows the outcome depends on how the AI is used. If used to completely replace thinking, it ends up eroding the skill. If used to support thinking, where the hard stuff remains with the person and the AI just takes some of the logical work, it will leave critical thinking as-is or even improve it.
The direction of the scientific literature on this is consistent: leaning on the AI to avoid the effort is exactly what diminishes the skill.
One study addresses the DK curve directly. Fernandes and colleagues [15] had 246 people solve twenty logical problems with AI. Performance went up by three points against a norm population, and people overestimated their score by four. So they did get better, and they overestimated themselves by more than they improved. Higher AI literacy corrolated with more overestimation, not less.
6. Does it really matter?
Handing a skill to a tool is the oldest story in recent human evolution, and most of the time it is just progress. We dropped long calculations for the calculator, stopped learning phone numbers, stopped reading maps. The skill faded and nobody missed it, because the tool was reliable. By that logic, intrinsic skill is just the next thing we are right to put down.
If the tool is always there, why keep the skill?
Because, if my hypothesis holds, handing it over stops being harmless in three places, and they are the three we should care about most.
- First, passing it on, and this is the one I care most about. Skill is handed down by apprenticeship: juniors do the boring work, struggle, fail in front of the more experienced, and pick up the know-how no one wrote down. AI now does the boring work, so the issues/struggle that made the next experts is gone, and the junior never really internalises it's AI driven learnings. The ones who built the skill before AI retire, and none form behind them.
- Second, when things break. The tool is not always there, and it is not always right. In 1997 an American Airlines captain warned that pilots were becoming "children of the magenta line," good at managing the automation but no longer able to fly by hand [9]. In 2009 the autopilot on Air France 447 quit over the Atlantic, handed the plane to a crew who had lost the hand-flying skill, and 228 people died [10]. The same happened at San Francisco in 2013 [11]. The skill that mattered only mattered for the ninety seconds it was needed.
- Second, oversight. The EU AI Act makes a human in the loop a legal requirement for high-risk systems. But look at what it asks of that human: understand what the system can and cannot do, catch it when it goes wrong, and know when to override it [14]. Every one of those is intrinsic skill under another name. You cannot check work you could not do yourself, so as the skill fades the human in the loop becomes a rubber stamp.
Banking has already run the test, on a delay. COBOL, written in 1959, still sits under an estimated three trillion dollars of transactions a day [12, 13]. It works. But the people who understand it are retiring/have retired, and the business rules live in their heads, not in any document. When New Jersey's unemployment system fell over in 2020, the state had to call retired programmers back [13]. You might say AI settles this: point it at the code. But the language was never the hard part. AI can read the syntax and still not tell you why one job runs before another on the last day of the month, or which exception encodes a rule from 1987 that no one wrote down. That did not live in the code. It lived in the person, and the person has gone.
7. What it all means
So, how much does intrinsic knowledge matter? What's the difference with a calculator, isn't it the same ? For everyday output, I'd say less and less, and pretending otherwise is just looking backward. For coping when things break, for oversight, and for making the next set of experts, more than ever.
What's important, if I am right, is this: intrinsic skill has moved from a productivity question to a governance one. It was about how the job gets done, now it is about trust, human in the loop, check, and survive the AI that is the actual work.
So it will become what ? Control functions, steering, guiding, directing, and like any control, it fails quietly until the day you need it.
The practical questions for companies are as simple to ask as they are uncomfortable to answer. Where in the organisation has intrinsic capability already thinned out : Who could still do the work if the tool went down tomorrow. And is your human in the loop a real check, or a signature. Who could still do the work if the tool went down tomorrow. And is your human in the loop a real check, or a signature
Who could still do the work if the tool went down tomorrow. And is your human in the loop a real check, or a signature
Put plainly: if my hypothesis is wrong, intrinsic skill is just nostalgia and the tool has freed us from it. If it is right, it is a control that erodes while the deliverable continous looking fine.
8. References
Dunning-Kruger, original and critiques
- [1] Kruger, J. and Dunning, D. (1999). Unskilled and Unaware of It: How Difficulties in Recognizing One's Own Incompetence Lead to Inflated Self-Assessments. Journal of Personality and Social Psychology, 77(6), 1121-1134. https://doi.org/10.1037/0022-3514.77.6.1121 (The popular peak-and-valley curve does not appear in this paper.)
- [2] Krueger, J. and Mueller, R. A. (2002). Unskilled, unaware, or both? The contribution of social-perceptual skills and statistical regression to self-enhancement biases. Journal of Personality and Social Psychology, 82(2), 180-188.
- [3] Gignac, G. E. and Zajenkowski, M. (2020). The Dunning-Kruger effect is (mostly) a statistical artefact. Intelligence, 80, 101449. https://www.sciencedirect.com/science/article/abs/pii/S0160289620300271
- [4] Nuhfer, E., Cogan, C., Fleisher, S., Gaze, E. and Wirth, K. (2016, 2017). Random-number simulations on self-assessment and the graphical portrayal of measured competence. Numeracy, 9(1) and 10(1). https://digitalcommons.usf.edu/numeracy/
AI, cognitive offloading and critical thinking
- [5] Gerlich, M. (2025). AI Tools in Society: Impacts on Cognitive Offloading and the Future of Critical Thinking. Societies, 15(1), 6. https://doi.org/10.3390/soc15010006
- [6] Lee, H. P., Sarkar, A., Tankelevitch, L. et al. (2025). The Impact of Generative AI on Critical Thinking: Self-Reported Reductions in Cognitive Effort and Confidence Effects From a Survey of Knowledge Workers. CHI 2025 (Microsoft Research and Carnegie Mellon). https://www.microsoft.com/en-us/research/publication/the-impact-of-generative-ai-on-critical-thinking-self-reported-reductions-in-cognitive-effort-and-confidence-effects-from-a-survey-of-knowledge-workers/
- [7] Kosmyna, N., Hauptmann, E., Yuan, Y. T. et al. (2025). Your Brain on ChatGPT: Accumulation of Cognitive Debt when Using an AI Assistant for Essay Writing Task. MIT Media Lab. arXiv:2506.08872. https://arxiv.org/abs/2506.08872
- [8] Risko, E. F. and Gilbert, S. J. (2016). Cognitive offloading. Trends in Cognitive Sciences, 20(9), 676-688.
- [15] Fernandes, D., Villa, S., Nicholls, S., Haavisto, O., Buschek, D., Schmidt, A., Kosch, T., Shen, C. and Welsch, R. (2026). AI Makes You Smarter, But None The Wiser: The Disconnect Between Performance and Metacognition. Computers in Human Behavior, 175, 108779. https://www.sciencedirect.com/science/article/pii/S0747563225002262 (preprint: https://arxiv.org/abs/2409.16708)
Automation dependency in aviation
- [9] Vanderburgh, W. ("Children of the Magenta Line"), American Airlines training lecture, 1997. Context and transcript: https://safeblog.org/2016/01/14/automation-dependency-children-of-the-magenta/
- [10] Bureau d'Enquetes et d'Analyses (BEA). Final report on Air France 447 (1 June 2009), published 2012. Accessible account: https://99percentinvisible.org/episode/children-of-the-magenta-automation-paradox-pt-1/
- [11] National Transportation Safety Board (2014). Aircraft Accident Report: Asiana Airlines Flight 214, San Francisco, 6 July 2013 (NTSB/AAR-14/01).
COBOL and legacy banking systems
- [12] Reuters (2017). Estimate that COBOL underpins roughly three trillion dollars of daily commerce, and that senior COBOL contractors command premium rates. https://fingfx.thomsonreuters.com/gfx/rngs/USA-BANKS-COBOL/010040KH18J/index.html (summary: https://biztechmagazine.com/article/2017/04/why-banks-need-replace-their-legacy-it)
- [13] Industry coverage (2020-2026) on COBOL's share of ATM and card transactions, the 220 billion lines still in production, the retiring developer base, and the 2020 New Jersey unemployment-system appeal for retired programmers. https://www.howtogeek.com/667596/what-is-cobol-and-why-do-so-many-institutions-rely-on-it/ and
Regulation
- [14] Regulation (EU) 2024/1689 (EU AI Act), Article 14 (human oversight) and Article 26 (deployer obligations). https://artificialintelligenceact.eu/article/14/ and https://artificialintelligenceact.eu/article/26/




