Contrast Misreaction Tendency
The nervous system registers contrast rather than absolute magnitude, so judgments are distorted by whatever was presented just before. A figure looks cheap next to a higher one and expensive next to a lower one — regardless of its true value. One of Charlie Munger’s 25 causes of human misjudgment.
Examples
- A $1,000 suit feels minor right after agreeing to a $40,000 car
- “Was $200, now $120” makes the price feel like a win without checking its real worth
- A mediocre option looks strong when shown beside a deliberately worse decoy
Why It Happens
Perception is built to detect change and difference, not absolute levels. This works for sensing temperature or brightness, but misfires when applied to prices, quality, and other quantities that have an absolute reality.
How to Counteract
- Evaluate each item against its own absolute merits, not against the anchor presented first
- Be alert to sequencing: salespeople show the expensive thing first on purpose
- Reset the comparison — “What would I pay if I’d seen nothing else?”