Doubt-Avoidance Tendency is one of Charlie Munger’s psychological tendencies: the human brain is uncomfortable with unresolved doubt and tends to remove it fast by jumping to a conclusion.
The idea
Munger argued this tendency likely has evolutionary roots — a hesitant animal facing a threat needed to decide and act, not deliberate indefinitely. The effect is strongest when a decision is puzzling and stressful, which is exactly when careful, doubt-tolerant thinking matters most. Under those conditions people are prone to seize on the first plausible answer, often the one offered most confidently by an authority figure, rather than continuing to sit with uncertainty.
When to use it
- Facing a stressful or high-stakes decision where you notice an urge to “just decide” and move on.
- Being pitched a confident answer by a salesperson, leader, or expert during a moment of anxiety.
- Group settings (juries, boards, committees) under time pressure to reach consensus.
How to apply it
- When a decision feels urgent and uncomfortable, treat that discomfort itself as a signal to slow down.
- Separate “I want this doubt to end” from “I have enough information to decide.”
- Deliberately hold two competing conclusions in mind before committing to one.
Watch out for
Doubt-avoidance combines dangerously with authority bias: a confident-sounding expert can resolve someone’s discomfort even when the expert is wrong. It also interacts with deadlines, which manufacture the stress that triggers the tendency.
Related models
- Inconsistency Avoidance — a related tendency that keeps us from revisiting a decision once made.
- Over Optimism — another Munger tendency that can bias the conclusion doubt-avoidance rushes toward.
- Cognitive Biases — the broader category this tendency belongs to.
Sources
Charlie Munger, “The Psychology of Human Misjudgment” (speech), reprinted in Poor Charlie’s Almanack.