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Cognitive debt, capability debt, and the rest

Seven terms for one worry, published within twelve months of each other. What each one means, what the evidence under it actually is, and the finding that emerged from checking: almost nobody claims to have coined any of them.

Last reviewed: 31 August 2026

A map of the competing vocabulary for AI and capability loss, read at primary source, with coinage claims tested rather than assumed, one widely repeated citation checked and found not to exist as cited, and three unverifiable sources named and excluded.

Questions this page answersAll 616 questions this research covers

Cognitive debt, capability debt, epistemic debt, culture debt, distributed de-skilling. Five terms, published between June 2025 and June 2026, for versions of the same worry: that using AI well in the short term costs something that only shows up later. This page maps them. The finding that came out of doing so was not the one expected. Almost nobody claims to have coined any of them.

Every source in this map was read at the primary source#

The terms below were checked against the paper or the publisher's own page, not against summaries. Where a source could not be reached, it is named at the foot of this page and left out of the map rather than described from secondary coverage. Three sources fell into that category, and one of them would have supported a point this page would otherwise have liked to make.

The debt family, and who actually claims what#

A coinage claim is a specific thing. It reads "we introduce", "we term", "we propose the term". Using a phrase, even defining it carefully, is weaker than claiming it. That distinction turns out to matter more than the terms themselves.

Two more entries, two more instances of the same pattern. Every firm claim in this corpus attaches to an instrument, a model or a mechanism. Not one attaches to the vocabulary.

The actual finding: convergent metaphor, no shared lineage#

Rohde, Sankaranarayanan and Deloitte each reach for a debt metaphor within four months of each other. None of them cites either of the others. Three separate authors, working in organisational economics, computing education and human capital consulting, independently arrived at the same accounting figure for the same phenomenon.

That convergence is more interesting than any individual coinage would have been. It suggests the metaphor is doing something the field genuinely needs, which is to describe a cost that is incurred now and paid later, invisible on any current measure. It also means the question "who said it first" is close to unanswerable and probably not worth answering.

What happened next: the term acquired a second meaning#

The map above was drawn in August 2026. Rechecking it, the pattern has changed in a way worth recording, because it is the opposite of what a contested category usually does.

The 2025 cohort converged on a metaphor without citing each other. The 2026 cohort does cite, and it converges on one source, the MIT paper. But it converges on the source while diverging on the meaning. Storey is explicit about the split in her own text: the term "has also been used to describe measurable reductions in individual neural engagement during AI-assisted tasks", whereas "our use of the term, however, focuses on the team-level and longitudinal dimension". She defines cognitive debt as a property of a team, an "erosion of shared understanding across a software system over time", which is a different object from anything measurable on an individual EEG.

So the most-cited term in the family now has two referents that do not reduce to each other. One is a state inside a single head. The other is a gap between several heads. They share a citation and not a definition.

There is a name for this, and the neatest part is where it comes from. Thoughtworks published volume 34 of its Technology Radar on 15 April 2026 under a headline about combating cognitive debt, and in the same document named the mechanism: "The industry is coining terms for emerging practices before their meanings have stabilized, leading to semantic diffusion." The Radar was one of the largest distribution events the term has had, and it arrived carrying a warning about exactly what distribution at that speed does to a word.

Six weeks later, on 28 May 2026, a Thoughtworks blog post on cognitive debt as an organisational risk described the MIT work in a single sentence: "The researchers called this phenomenon cognitive debt." Checked against the paper, the researchers did no such thing. They used the phrase four times in 216 pages, never in the abstract, never with a citation, and never with any language of introduction. This is not a serious error, and the post is a thoughtful piece that reports the underlying caution honestly. It is worth recording only because it is the mechanism working in real time: a firm names semantic diffusion in April and performs a small instance of it in May.

What the most-cited term actually rests on#

Cognitive debt is the term that reached the public. The study underneath it deserves reading rather than citing.

Fifty-four participants, aged 18 to 39, recruited from five universities in the Boston area, writing essays across three sessions. Three groups of eighteen: one using ChatGPT, one using a search engine, one unaided. EEG on 32 channels. The finding most quoted, that removing AI left the LLM group unable to quote their own work, comes from session four, which only 18 participants attended, nine per arm. The widely repeated 78 per cent and 11 per cent are seven of nine and one of nine.

The paper still carries "Preprint, under review" in the footer of all 216 pages of its December 2025 revision. It has not been peer reviewed. The authors state their own limits clearly, including that findings "are context-dependent and are focused on writing an essay in an educational setting and may not generalize across tasks", and they hedge the central passage themselves: "This next finding should be considered preliminary, as a larger participant sample is needed to confirm the claim."

On 29 December 2025 a formal Comment was posted by Stanković and colleagues at Vienna and TU Dresden, arXiv 2601.00856. Their power analysis puts the required sample at roughly 159. Their sharpest point is about the term itself: the search engine group used an external tool and showed no impairment, with the comparison against the unaided group returning p = 1. If offloading to a tool produced cognitive debt, that group should have shown it. The Comment is also a preprint, offered as a critique rather than a refutation.

None of this makes the study worthless. It makes it a small, unreviewed, contested pilot carrying a term that a great deal of subsequent commentary treats as settled.

What the most influential survey rests on#

BCG's June 2026 article will be quoted in boardrooms for the rest of the year, and its headline numbers are worth reading with their provenance attached. Seventy C-suite leaders and senior executives. Half already observing de-skilling. More than 60 per cent expecting it to be a material threat within three to five years. Judgement and decision-making named as carrying the highest de-skilling risk.

The article states no countries, no fieldwork dates, no sampling method, no response rate, no industry breakdown and no question wording. It has no limitations section, no endnotes and no reference list. A "de-skilling risk score" is reported as though it were a defined metric and is never defined. By the grading used across this estate, that places it as an institutional survey of unknown representativeness, useful as a signal of what senior people now believe and not usable as a measurement of what is happening.

The same applies to Deloitte's March 2026 release, which reports that 85 per cent of leaders call adaptability critical while 7 per cent say they are leading on it, and gives no sample size, no countries and no fieldwork dates in the release itself.

The pattern across all three is the same. The vocabulary is ahead of the evidence, and the evidence is ahead of its own methodology sections.

Where this research sits, stated against itself#

This estate uses capability debt. It makes no claim of first use, and the check above is the reason it never will: Rohde defines the term in print and does not claim it either, so the honest description is that two people arrived at an obvious metaphor for the same problem at roughly the same time, along with several others who reached for adjacent versions.

The same standard applies to the rest of the vocabulary here. Usage theatre and the verifier's discount carry no first-use claim. Synthetic seniority and the missing rungs do, and are dated. Applying to your own vocabulary the test you apply to everyone else's is the cheapest credibility available, and most of the sources on this page do not do it.

One further observation was offered here as an impression rather than a measurement: that the academic terms describe what happens inside an individual head, cognitive debt and epistemic debt and the verification bottleneck, while the consulting terms describe what happens to an organisation, distributed de-skilling and culture debt.

That impression did not survive the next two sources, and it is left standing here with the correction attached rather than quietly deleted. Storey is an academic and her cognitive debt is explicitly a team-level property. Jarrahi is a professor and his skill atrophy is explicitly organisational. The split was never between academics and consultants. It was between people writing in June 2025, when the individual measurement was the only evidence anyone had, and people writing nine months later with organisations in front of them.

The gap the original observation pointed at is real even though the reason given for it was wrong. It is where the mechanism lives, at human capability in the age of AI, and it stays thinly occupied because working there needs both literatures at once.

Adjacent terms worth knowing#

What could not be verified, and is therefore absent#

Three sources were pursued and left out.

Naming these is the point rather than an apology. A map of who said what, built partly from search summaries, would be a map of what search engines believe.

The citation that would have moved the date#

One check on this page mattered more than the others, because it would have rewritten the timeline for the whole family.

Storey's reference list dates the MIT work to 2024 and places it at a workshop: "Kosmyna, N., Beh, J., Kellogg, R., Sra, M., and Maes, P. 2024. Cognitive Debt in the Era of Generative AI: Evidence from Writing Assistance Using Large Language Models. CHI '24 Workshop on Human-Centred Evaluation of LLMs." If that paper exists, cognitive debt is a year older than this page says, the phrase sat in a title rather than four times in a body, and the ordering of the entire debt family changes.

It was checked against the MIT Media Lab's own publications list for Nataliya Kos'myna, which is the record the authors maintain themselves. There is no CHI '24 workshop paper of that name on it. The only entry carrying the phrase is the one already on this page: "Your Brain on ChatGPT: Accumulation of Cognitive Debt when Using an AI Assistant for Essay Writing Task", arXiv 2506.08872, 2025, and its co-authors are Hauptmann, Yuan, Situ, Liao, Beresnitzky, Braunstein and Maes. Beh, Kellogg and Sra are not among them. The year, the venue and three of the five named authors do not match anything in the record.

This is one slip in a long reference list, in a paper that is otherwise the most carefully argued thing in this corpus, and it is recorded here for one reason only. It is a citation for the origin of the field's most-quoted term, sitting in the most authoritative venue any of this vocabulary has reached. Citations of that kind get copied. If it propagates, a term whose actual first appearance is a June 2025 preprint will acquire a 2024 conference provenance it never had, and it will be almost impossible to unpick afterwards.

Which is the argument for this page in a single example. Vocabulary moves faster than the checking, and the checking is not difficult. It took one look at a list the authors publish themselves.

Key research and primary sources

For the category these terms are circling, human capability in the age of AI. For the mechanism, capability debt, the missing rungs and synthetic seniority. For how sources are graded here, the evidence base and what we actually know. For the oversight argument, human in the loop is not a safeguard.

About this research#

Rahim Hirji is the author of SuperSkills (Kogan Page, 2026), keynote speaker on AI and human capability, and founder of The SuperSkills Intelligence Company. Every source on this page was read at the primary source on 28 August 2026, with the three exceptions named above. Coinage claims were tested by searching each paper for explicit claiming language rather than by inference from usage. This page describes other people's work and has an obvious interest in one of the terms on it, so the standard applied to everyone else has been applied here first.

How this research works  ·  Reviewed quarterly  ·  Found an error? Tell me and it is corrected on the page.

Cite this

Hirji, R. (2026). Cognitive debt, capability debt, and the rest: what to call it when AI erodes capability. The SuperSkills Intelligence Company. Last reviewed 31 August 2026. thesuperskills.com/research/cognitive-debt-and-capability-debt

Questions answered on this page

What is cognitive debt?

Cognitive debt is defined by Kosmyna and colleagues at the MIT Media Lab as a condition in which repeated reliance on external systems like LLMs replaces the effortful cognitive processes required for independent thinking. Worth knowing before citing it: the phrase appears four times in a 216-page paper, is not in the abstract, carries no citation, and the authors nowhere claim to have coined it. The paper is a preprint, still marked under review, based on 54 participants, and its most-quoted result comes from a fourth session that only 18 people attended, nine per arm.

What is the difference between cognitive debt and capability debt?

Cognitive debt describes what happens inside an individual head: reliance on a tool displacing the effortful thinking that builds independent capability. Capability debt, as Rohde defines it, is organisational: it arises when visible output is preserved by weakening the human skill, review capacity and apprenticeship structures needed to sustain reliable work over time. The academic terms tend to be individual and the consulting terms organisational, and the gap between the two is where the mechanism sits.

Who coined the term capability debt?

Nobody has claimed it. Rohde defines capability debt in print in April 2026 but makes no coinage claim; what he claims is a mechanism, capability masking and capability erosion. SuperSkills uses the term and explicitly makes no claim of first use. The same is true across the whole family: cognitive debt, epistemic debt and culture debt are each used and defined without any author claiming authorship of the phrase. The only firm naming claim in the set is BCG on distributed de-skilling, where the wording is We call this.

What did the BCG de-skilling survey actually find, and how reliable is it?

BCG surveyed 70 C-suite leaders and senior executives and reported that half are already observing de-skilling and more than 60 per cent expect it to be a material threat within three to five years, with judgement and decision making carrying the highest de-skilling risk. The article states no countries, no fieldwork dates, no sampling method, no response rate and no question wording, has no limitations section and no reference list, and reports a de-skilling risk score it never defines. It is a useful signal of what senior leaders now believe rather than a measurement of what is happening.

Has the MIT cognitive debt study been criticised?

Yes. A formal Comment by Stankovic and colleagues at the University of Vienna and TU Dresden was posted on 29 December 2025. Their power analysis suggests roughly 159 participants would be needed for adequate power against the 54 used. Their strongest point concerns the term itself: the search engine group relied on an external tool yet showed no impairment, with the comparison against the unaided group returning p equals 1, which sits awkwardly with the interpretation that offloading accumulates cognitive debt. The Comment is itself a preprint and is a critique rather than a refutation.

What is skill atrophy, and how does it differ from cognitive debt?

Skill atrophy is defined by Mohammad Hossein Jarrahi, Professor at the University of North Carolina at Chapel Hill, writing at CognitiveWorld in March 2026, as the hidden, accumulating loss of human skill, judgment and capacity that happens when organisations and workers use automation in ways that reduce practice, learning and ownership. It differs from cognitive debt mainly in what it is a property of. Cognitive debt as the MIT paper uses it is a state inside one person. Skill atrophy is about capability at the level of a workforce, and Jarrahi frames it through the same borrowing metaphor: the organisation borrows capability now for speed and pays it back later in brittleness and overdependence. He makes no claim to have coined the phrase. What he does claim is a mechanism he calls useful friction.

What is intent debt?

Intent debt is defined by Margaret-Anne Storey of the University of Victoria, in ACM Queue with a preprint at arXiv 2603.22106 in March 2026, as the absence or erosion of the explicit rationale, goals and constraints that guide how a system evolves. It sits in her triple debt model alongside technical debt and cognitive debt. Her summary of the three is the clearest formulation in this literature: technical debt lives in code, cognitive debt lives in people, and intent debt lives in artefacts. Storey does make a claim of authorship, with a narrow scope. She proposes the model. She does not claim any of the three terms.

Does cognitive debt mean the same thing in every source?

No, and the divergence is recent. The MIT paper uses cognitive debt for a condition inside an individual, measurable as reduced neural engagement. Storey uses it in March 2026 for a team-level property, the erosion of shared understanding of a system over time, and states the difference explicitly rather than leaving it implicit. Those two referents do not reduce to each other: one is a state in a single head, the other is a gap between several heads. They share a citation and not a definition. Thoughtworks named this mechanism semantic diffusion in volume 34 of its Technology Radar in April 2026, describing an industry that coins terms for emerging practices before their meanings have stabilised.

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