This is a Lexicon entry: the mechanism, when it shows up, and the countermeasure. The full correction, with real-world cases and the audit prompt, hasn't been written yet.
Definition
People evaluate outcomes by comparing them to mentally constructed "normal" alternatives. Abnormal events feel worse than identical normal ones because it's easier to imagine how they could have been avoided - which is why near-misses feel worse than clear failures.
When it shows up
Near-miss outcomes: silver medal versus bronze, missing a train by one minute versus twenty, losing by one point. Any result where a slightly better counterfactual is easy to construct. Modern context: A sales team that loses a deal by one slide in the final presentation feels worse about the loss than a team that lost by a wide margin in the first meeting - even though the outcome is identical. The near-miss activates counterfactual simulation; the clean miss does not.
Failure mode
Emotional response is scaled by how easily a better outcome can be imagined, not by the actual outcome. The closer the counterfactual, the sharper the regret, even when the actual result is objectively equivalent to a more distant counterfactual.
Countermeasure
Compare the outcome to the full distribution of possibilities, not just the nearest better one. Ask: 'What fraction of alternatives would have been worse than this?' rather than 'what would have been slightly better?'
Related traps
Also connected in the mapThe Narrative Fallacy·Outcome Bias·4 more, locked
Credit & first seen
DiscoveredKahneman and Miller (1986); a dedicated chapter in Gilovich, Griffin & Kahneman (2002). source ↗
Read next
Entry #36 of 631 in The Lexicon · see the full Lexicon