No True Scotsman is redefining a category to exclude counterexamples. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0496, within the Definition Fallacy family. The core principle: redefining a category to exclude counterexamples. In incentive terms, it matters because it changes the payoff people perceive before they choose — which means it can be designed for, or exploited.
Scientific Definition
Redefining a category to exclude counterexamples.
Plain-English Definition
Redefining a category to exclude counterexamples.
Feynman Explanation
'No real leader would resist AI.' — said the leader resisting nuance.
Core Principle
Redefining a category to exclude counterexamples.
Mechanisms
Redefining a category to exclude counterexamples.
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Inputs (Triggers)
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Outputs (Behaviors)
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Behavioral Signature
'No real leader would resist AI.' — said the leader resisting nuance.
Examples
- Dismissing dissent by reclassifying dissenters as not real practitioners.
- Critical feedback escaped by redefinition.
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Original analysis from The Incentives Lab — how this element behaves inside real payoff structures.
Why this element matters to incentive design
Executives usually notice this element only after it has cost something. By then it looks like a one-off. It is not. The mechanism underneath it is straightforward: redefining a category to exclude counterexamples. You can recognize it in the field by its signature: 'No real leader would resist AI.' — said the leader resisting nuance. Every element in the Cognition dimension changes the perceived payoff of an action before the action happens, which is exactly where incentive design has leverage.
How it gets exploited
Left undesigned, critical feedback escaped by redefinition. It is amplified whenever critical feedback escaped by redefinition. Inside organizations that shows up as critical feedback escaped by redefinition. The pattern is the same one Goodhart's Law describes: the measurable proxy attracts the effort, and the purpose behind it quietly loses funding.
How the Lab designs around it
The redesign move is to make the desired behavior observable, remove whatever currently pays for its opposite, and attach the reward to the behavior rather than to the noisy outcome downstream of it. Design against it the way you would design against a known failure mode — assume it will appear, and price the exploit before someone finds it.
Famous Experiments
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Design Principles
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Measurement Approaches
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Evidence
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The Perverse Incentive Lens™
How this behavior is exploited — and how to redesign around it.
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Interactive Mini Network
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Knowledge Graph Neighbors
Auto-linked to the rest of the Human Behavior Taxonomy by family, domain, dimension, and shared keywords.
Assuming the conclusion in the premise.
The conclusion is hidden inside the premise.
What's true of the parts is assumed true of the whole.
Because there's no sharp line, no distinction exists.
Quietly redefining a term mid-argument.
What's true of the whole is assumed true of the parts.
Constraining the option set to bias the decision.
Insisting on a word's original meaning over its current one.
Treating two things as comparable when they're not.
Assuming the truth must lie between two extremes.
Deriving 'is' from 'ought.'
Changing success criteria whenever the prior criteria are met.
Where No True Scotsman is cited in the corpus
Essays, field guides, and diagnostics from The Incentives Lab that apply this element.
- EssayGoodhart's Law in the Real World
How measurable proxies capture judgment.
- EssayThe Perverse Incentives Hiding in Your KPIs
Cognitive shortcuts turned into scorecards.
- CourseIncentives 101
The free ten-part primer on reading a payoff structure.
- ReferenceThe Periodic Table of Human Behavior
The full 1,267-element map this page belongs to.
Questions about No True Scotsman
- What is No True Scotsman?
- No True Scotsman is redefining a category to exclude counterexamples. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0496, within the Definition Fallacy family. The core principle: redefining a category to exclude counterexamples. In incentive terms, it matters because it changes the payoff people perceive before they choose — which means it can be designed for, or exploited.
- What is an example of No True Scotsman?
- Critical feedback escaped by redefinition. The Incentives Lab catalogs everyday, organizational, and historical instances of this element on its Human Behavior Taxonomy™ page (HBT-COG-0496).
- How is No True Scotsman exploited?
- Critical feedback escaped by redefinition.
- How do you design around No True Scotsman?
- Name the behavior you want in observable terms, remove what currently pays for the opposite, attach the reward to the behavior rather than a lagging proxy, and publish how you will detect gaming.
- Which behavioral dimension does No True Scotsman belong to?
- No True Scotsman is classified in the Cognition dimension (COG) of the Human Behavior Taxonomy™, family "Definition Fallacy", class "Logical Fallacy". Its permanent identifier is HBT-COG-0496 and its evidence grade is B.