Scientific Definition
~150 — the cognitive limit on stable social relationships.
Plain-English Definition
~150 — the cognitive limit on stable social relationships.
Feynman Explanation
Above 150, you have a directory, not a tribe.
Core Principle
~150 — the cognitive limit on stable social relationships.
Mechanisms
Pending editorial review.
~150 — the cognitive limit on stable social relationships.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Scaling org design must account for the 150-person inflection.
Inputs (Triggers)
Pending editorial review.
Outputs (Behaviors)
Pending editorial review.
Behavioral Signature
Above 150, you have a directory, not a tribe.
Examples
- Org structures that retain coherence below ~150, fragment above.
- Scaling org design must account for the 150-person inflection.
Pending editorial review.
Famous Experiments
Pending editorial review.
Design Principles
- Design deliberate sub-tribes when crossing Dunbar's threshold.
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.
- Design deliberate sub-tribes when crossing Dunbar's threshold.
Pending editorial review.
Pending editorial review.
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.
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