/wordly-wisdom

Misjudgment Playbook

This file groups Munger's twenty-five standard causes of human misjudgment into practical clusters. Do not recite the list. Use the most relevant entries.

How to use it

1. Pick the 3 to 6 tendencies doing the real work.
2. Explain the likely distortion in plain language.
3. Name one antidote or design fix for each.
4. Then decide whether the case is still attractive.

Cluster 1: Motivation and reward

1. Reward and punishment super-response

The most important tendency.

Watch for:

• perverse incentives
• gaming the metric
• sales commissions or bonuses distorting behaviour

Antidotes:

• ask what is actually being rewarded
• redesign the system around the true objective

2. Reciprocation

Favour creates pressure.

Watch for:

• soft bias after gifts, access, or concessions

Antidotes:

• re-anchor on explicit criteria

3. Liking / loving

Affection clouds judgement.

Watch for:

• over-trust of founders, partners, or charismatic managers

Antidotes:

• separate affection from the proposition

4. Disliking / hating

Dislike also clouds judgement.

Watch for:

• rejecting a good idea because you dislike the messenger

Antidotes:

• steelman the opposing case

Cluster 2: Commitment and identity

5. Doubt avoidance

People rush to certainty to end discomfort.

Watch for:

• premature closure
• fast yes or fast no under pressure

Antidotes:

• generate at least one live alternative hypothesis

6. Inconsistency avoidance

Once committed, people defend the existing path.

Watch for:

• sunk-cost escalation
• refusal to change mind

Antidotes:

• ask what you would do if starting fresh today

7. Excessive self-regard

People overrate themselves and what they already own.

Watch for:

• founder worship of their own plan
• endowment effect

Antidotes:

• use outside comparisons and disconfirming evidence

8. Overoptimism

The plan feels better than the base rate.

Watch for:

• underestimated timelines
• cheerful assumptions without buffers

Antidotes:

• outside view, wider ranges, and explicit buffers

Cluster 3: Social influence

9. Social proof

The crowd becomes evidence.

Watch for:

• copying peers
• benchmark hugging
• fashionable conviction

Antidotes:

• ask what the view would be in private, without visibility

10. Authority misinfluence

Title, status, or credentials silence dissent.

Watch for:

• borrowed certainty
• intimidated teams

Antidotes:

• ask whether the authority is actually inside the relevant competence

11. Contrast misreaction

Judgement shifts because the comparison set shifts.

Watch for:

• bad terms looking acceptable after worse terms
• salary or price anchoring

Antidotes:

• compare to absolute standards and realistic alternatives

12. Influence from mere association

Halo and contamination effects.

Watch for:

• prestige attached to unrelated qualities
• branding used as a substitute for substance

Antidotes:

• strip the proposition from its packaging

Cluster 4: Pain, stress, and denial

13. Psychological denial

Painful facts get ignored.

Watch for:

• delayed write-downs
• refusing to face obvious bad news

Antidotes:

• ask what painful fact no one wants to say aloud

14. Deprival-superreaction

Loss hurts more than gain pleases.

Watch for:

• chasing losses
• refusing to shrink exposure
• overreacting to near-miss outcomes

Antidotes:

• predefine stop rules and walk-away criteria

15. Stress influence

Stress alters judgement.

Watch for:

• tunnel vision
• brittle behaviour
• overconfident simplification

Antidotes:

• simplify, slow the tempo, and avoid irreversible decisions under peak stress

16. Drug misinfluence

Chemical state alters cognition.

Watch for:

• addiction dynamics
• stimulant overreach or depressant dullness

Antidotes:

• do not normalise altered-state decision making

Cluster 5: Information and cognition

17. Availability-misweighting

Vivid or recent information gets too much weight.

Watch for:

• headline-driven judgement
• overreacting to salient anecdotes

Antidotes:

• pull back to frequency and base-rate data

18. Curiosity tendency

Usually good, sometimes distracting.

Watch for:

• chasing fascinating but non-decisive details

Antidotes:

• keep curiosity tied to the actual decision

19. Twaddle tendency

Loose talk and empty concepts fill the room.

Watch for:

• jargon without mechanism
• pseudo-explanations

Antidotes:

• ask, "What do you mean, exactly, and how would we know?"

20. Reason-respecting tendency

Humans respond better when given reasons.

Watch for:

• commands without explanation causing resistance

Antidotes:

• explain the why behind the requested action

Cluster 6: Human nature and fairness

21. Kantian fairness

People care about fair dealing.

Watch for:

• hidden resentment or refusal after perceived unfairness

Antidotes:

• make fairness norms explicit and legible

22. Envy / jealousy

Comparison drives irrationality.

Watch for:

• decisions made to keep up or avoid looking smaller

Antidotes:

• focus on absolute outcomes, not relative status

23. Use-it-or-lose-it

Unused skills decay, but so do healthy habits.

Watch for:

• atrophy in judgement, discipline, or domain fluency

Antidotes:

• keep the key skill loop alive

24. Senescence misinfluence

Age changes cognition and incentives.

Watch for:

• overconfidence in old patterns or diminished adaptability

Antidotes:

• test for real current competence, not legacy prestige

25. Lollapalooza tendency

Several tendencies reinforce one another and produce extreme outcomes.

Watch for combinations such as:

• incentives + social proof + authority
• overoptimism + sunk cost + denial
• envy + contrast + status competition

Antidotes:

• interrupt one of the major reinforcing loops early

Practical shortcut

When you are short on time, run this six-question audit:

1. What incentives dominate?
2. Who is following the crowd?
3. Where is authority distorting dissent?
4. What painful fact is being denied?
5. Where is sunk cost or loss-aversion locking behaviour?
6. Which combination of tendencies could create an extreme result?