Murphy's Law is anything that can go wrong will go wrong. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0488, within the Probability family. The core principle: anything that can go wrong will go wrong. 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
Anything that can go wrong will go wrong.
Plain-English Definition
Anything that can go wrong will go wrong.
Feynman Explanation
Hope is not a strategy. Neither is Murphy's Law, but it is more accurate.
Core Principle
Anything that can go wrong will go wrong.
Mechanisms
Pending editorial review.
Anything that can go wrong will go wrong.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Contingency planning is not pessimism; it is realism.
Inputs (Triggers)
Pending editorial review.
Outputs (Behaviors)
Pending editorial review.
Behavioral Signature
Hope is not a strategy. Neither is Murphy's Law, but it is more accurate.
Examples
- The demo fails in front of the most important prospect.
- Contingency planning is not pessimism; it is realism.
Pending editorial review.
Original analysis from The Incentives Lab — how this element behaves inside real payoff structures.
Why this element matters to incentive design
This element is common enough to feel like human nature and specific enough to be engineered around. The mechanism underneath it is straightforward: anything that can go wrong will go wrong. You can recognize it in the field by its signature: hope is not a strategy. Neither is Murphy's Law, but it is more accurate. 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, contingency planning is not pessimism; it is realism. It is amplified whenever contingency planning is not pessimism; it is realism. Inside organizations that shows up as contingency planning is not pessimism; it is realism. 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 plan for failure modes and rehearse responses. The leverage is not in explaining the behavior to people. It is in changing what the behavior earns.
Famous Experiments
Pending editorial review.
Design Principles
- Plan for failure modes and rehearse responses.
Measurement Approaches
Pending editorial review.
Evidence
Pending editorial review.
Pending editorial review.
The Perverse Incentive Lens™
How this behavior is exploited — and how to redesign around it.
- Plan for failure modes and rehearse responses.
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.
Ignoring general statistics in favor of specific, vivid information.
Posterior = (likelihood × prior) / evidence.
Update beliefs in proportion to the strength of new evidence.
Start with a prior; update with new evidence.
Novices experiencing early success, often due to variance and small samples.
High-impact, hard-to-predict, retrospectively explainable events.
Striking pattern that is statistically expected in large samples.
Reasoning in distributions — ranges and probabilities — rather than points.
Average outcomes across the population differ from outcomes across time for one person.
A rough calculation using order-of-magnitude reasoning.
In quantum mechanics, certain pairs of properties cannot both be precisely known.
We ignore sample size when judging probability.
Where Murphy's Law 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 Periodic Table of Human Behavior
The full 1,267-element map this page belongs to.
- ReferenceThe incentive glossary
Definitions for every mental model, bias, and fallacy in the corpus.
Questions about Murphy's Law
- What is Murphy's Law?
- Murphy's Law is anything that can go wrong will go wrong. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0488, within the Probability family. The core principle: anything that can go wrong will go wrong. 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 Murphy's Law?
- Contingency planning is not pessimism; it is realism. The Incentives Lab catalogs everyday, organizational, and historical instances of this element on its Human Behavior Taxonomy™ page (HBT-COG-0488).
- How is Murphy's Law exploited?
- Contingency planning is not pessimism; it is realism.
- How do you design around Murphy's Law?
- Plan for failure modes and rehearse responses.
- Which behavioral dimension does Murphy's Law belong to?
- Murphy's Law is classified in the Cognition dimension (COG) of the Human Behavior Taxonomy™, family "Probability", class "Mental Model". Its permanent identifier is HBT-COG-0488 and its evidence grade is B.