Scientific Definition
Accidents occur when multiple layers of defenses fail simultaneously.
Plain-English Definition
Accidents occur when multiple layers of defenses fail simultaneously.
Feynman Explanation
Every layer has holes. Catastrophe finds the alignment.
Core Principle
Accidents occur when multiple layers of defenses fail simultaneously.
Mechanisms
Pending editorial review.
Accidents occur when multiple layers of defenses fail simultaneously.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Risk management is about layers, not single controls.
Inputs (Triggers)
Pending editorial review.
Outputs (Behaviors)
Pending editorial review.
Behavioral Signature
Every layer has holes. Catastrophe finds the alignment.
Examples
- A plane crash requires several safeguards to fail at once.
- Risk management is about layers, not single controls.
Pending editorial review.
Famous Experiments
Pending editorial review.
Design Principles
- Add independent layers and monitor near-misses.
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.
- Add independent layers and monitor near-misses.
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.
Combining substances to create a new material stronger than its parts.
A single constraint limits the throughput of an entire system.
A system's throughput is constrained by its single slowest step.
Small visible disorders signal that bigger ones will be tolerated.
Adding manpower to a late software project makes it later.
Adding people to a late project makes it later.
A substance that speeds up a reaction without being consumed.
Nonlinear systems are highly sensitive to initial conditions.
Inputs combine under conditions to produce new outputs — sometimes irreversibly.
Software architecture mirrors org structure.
Working together has a cost that scales with the number of people.
The threshold at which a system becomes self-sustaining.