Poisoning the Well is discrediting a source or person before they make their argument. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0532, within the Reasoning family. The core principle: discrediting a source or person before they make their argument. 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
Discrediting a source or person before they make their argument.
Plain-English Definition
Discrediting a source or person before they make their argument.
Feynman Explanation
If you poison the well, no one drinks the water, even if it is clean.
Core Principle
Discrediting a source or person before they make their argument.
Mechanisms
Pending editorial review.
Discrediting a source or person before they make their argument.
Pending editorial review.
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Ad hominem in advance blocks legitimate debate.
Inputs (Triggers)
Pending editorial review.
Outputs (Behaviors)
Pending editorial review.
Behavioral Signature
If you poison the well, no one drinks the water, even if it is clean.
Examples
- 'Don't listen to her; she always defends the old regime.'
- Ad hominem in advance blocks legitimate debate.
Pending editorial review.
Original analysis from The Incentives Lab — how this element behaves inside real payoff structures.
Why this element matters to incentive design
Most organizations meet this element as a personnel problem. It is not one. The mechanism underneath it is straightforward: discrediting a source or person before they make their argument. You can recognize it in the field by its signature: if you poison the well, no one drinks the water, even if it is clean. 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, ad hominem in advance blocks legitimate debate. It is amplified whenever ad hominem in advance blocks legitimate debate. Inside organizations that shows up as ad hominem in advance blocks legitimate debate. 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 hear the argument before evaluating the source. 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
Pending editorial review.
Design Principles
- Hear the argument before evaluating the source.
Measurement Approaches
Pending editorial review.
Evidence
Pending editorial review.
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The Perverse Incentive Lens™
How this behavior is exploited — and how to redesign around it.
- Hear the argument before evaluating the source.
Pending editorial review.
Pending editorial review.
Interactive Mini Network
Click any neighbor to re-center the graph and follow the threads of connection.
Knowledge Graph Neighbors
Auto-linked to the rest of the Human Behavior Taxonomy by family, domain, dimension, and shared keywords.
Deriving general rules from specific examples; the leap from instance to concept.
The brain evolved to reason adaptively, not always truthfully, to reduce the cost of errors.
We solve problems by adding, even when subtracting would be better.
Assuming that if one option is true, another must be false, when both can be true.
Presuming a purposeful actor behind events that may have no actor at all.
What cannot be settled by experiment is not worth debating.
A finite set of well-defined instructions for solving a problem or performing a computation.
Every model simplifies reality; some are still useful.
Researchers favor conclusions aligned with their school, team, or sponsor.
Using personal stories or isolated examples instead of evidence.
Claiming something is true or better because most people believe it.
Assuming something is true because it is probable or possible.
Where Poisoning the Well 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.
- EssayAI Agents Inherit Your Incentives
How this element propagates into automated systems.
- ReferenceThe incentive glossary
Definitions for every mental model, bias, and fallacy in the corpus.
- ReferenceThe Periodic Table of Human Behavior
The full 1,267-element map this page belongs to.
Questions about Poisoning the Well
- What is Poisoning the Well?
- Poisoning the Well is discrediting a source or person before they make their argument. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0532, within the Reasoning family. The core principle: discrediting a source or person before they make their argument. 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 Poisoning the Well?
- Ad hominem in advance blocks legitimate debate. The Incentives Lab catalogs everyday, organizational, and historical instances of this element on its Human Behavior Taxonomy™ page (HBT-COG-0532).
- How is Poisoning the Well exploited?
- Ad hominem in advance blocks legitimate debate.
- How do you design around Poisoning the Well?
- Hear the argument before evaluating the source.
- Which behavioral dimension does Poisoning the Well belong to?
- Poisoning the Well is classified in the Cognition dimension (COG) of the Human Behavior Taxonomy™, family "Reasoning", class "Mental Model". Its permanent identifier is HBT-COG-0532 and its evidence grade is B.