Mental shortcuts that usually work but sometimes fail systematically—heuristics are adaptive cognitive strategies; biases are the predictable errors that result when these shortcuts misfire. The foundation of behavioral economics and critical thinking.
Common Heuristics and Their Biases
| Heuristic | Function | Bias |
|---|---|---|
| Availability | Judge probability by ease of recall | Overestimate vivid events |
| Representativeness | Categorize by stereotypes | Ignore base rates |
| Anchoring | Adjust from initial value | Insufficient adjustment |
| Affect | Use feelings as information | Emotional distortion |
System 1 vs System 2
- System 1: Fast, automatic, heuristic-based (prone to bias)
- System 2: Slow, deliberate, analytical (can correct bias)
Most thinking is System 1—efficient but error-prone.
Elemental Analysis
Air (σ) at 0.85: Distinction-making—where heuristics succeed vs. where they fail; signal vs. noise.
Earth (δγ) at 0.75: Pattern cycling—repeated use of shortcuts, habitual thinking.
Water (ρ) at 0.70: Affective flow—emotional resonance driving judgment.
NEMETIC STRING
Φ(HeuristicsBiases) = σ(shortcut|accuracy) ∘ δγ(pattern|cycling) ∘ ρ(affect|flow) + ε | :biased
Core Insight
We are not rational calculators but adaptive satisficers—mental shortcuts serve us well most of the time, but knowing when they fail is the essence of critical thinking.
Related: Confirmation Bias, WYSIATI, Cognitive Dissonance
SIML Entry: C052 Heuristics and Biases