A Mental Model Collection
(gratitude to Charlie Munger) 

Pareto Principle: 80/20 rule.

Occam's Razor: Favor simple answers.

Hindsight Bias: Past seems predictable.

Reciprocity: Kindness begets kindness.

Opportunity Cost: Consider value of missed alternatives.

Confirmation Bias: New info. clouded by existing beliefs.

Eisenhower Matrix: Urgency vs. importance.

Maslow's Hierarchy: Needs progression, survival to self-actualization. 


Dunning-Kruger Effect: Ignorance breeds confidence.

Game Theory: Tit for Tat with a balance to altruisum.

Moral Licensing: Good acts justifying bad ones.

Groupthink: Consensus over criticism.

Loss Aversion: Fearing losses over gains.

Peter Principle: Promotion until incompetence.

Self-Serving Bias: Success claimed, failure orphaned.

Serenity Prayer: Acceptance vs. change.

Antifragility: Instead of weakening, shocks reinforce 

Sunk Cost Fallacy: Beware doubling down instead of cutting.

Inversion: Reverse problem-solving.

Circle of Competence: Know limits of your expertise.

Checklist Manifesto: Decision-making aids.

Contrarian Thinking: Challenge consensus.

Intellectual Yet Idiot: Knowledge lacks wisdom.

Framing Effect: Presentation impacts choices.

Paradox of Choice: Fewer options, better choices.

Disconfirmation Bias: Challenge accepted info.

Recency Bias: Recent events influence.

Counterfactual Thinking: What if scenarios.

Feedback Loops: Iterative improvements.

Correlation vs. Causation: Cause isn't correlation.

First Principles Thinking: Fundamentals first.

Anchoring Bias: Initial info influences.

Default Effect: Preset options sway.

Biased Samples: Watch for bias.

Averages Deception: Averages can deceive.

Graph Manipulation: Visual tricks.

Lack of Context: Data needs context.

Misleading Correlations: Watch false causation.

Statisticulation Tricks: Percentages can deceive.

Extrapolation Errors: Risky predictions.

Availability Heuristic: Ease of recalling info in thinking. 

Halo Effect: One good trait generalizes.

Black Swan Effect: Limitations of past data in prediction. 

Endowment Effect: Overvaluing own possessions.

Size of House is inversely proportional to happiness


Time Discounting: Valuing money less if in future. 


Regret Minimization: Act to minimize regret in future. 

Von Restorff Effect: Unique stands out.

Green Lumber Fallacy: Knowledge isn't understanding.

Barbell Strategy: Balancing extremes of risk and safety 


Via Negativa: Exploring something from what it is not. 

Probability Weighting: Overestimate small and underestimate large probabilities