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Psychological Phenomena

Gell-Mann Amnesia Effect

Decision-Making and Judgment Biases

The Gell-Mann amnesia effect is a term coined by the writer Michael Crichton in a 2002 speech for the pattern in which a reader who is expert in a subject reads a news article on that subject, recognizes it as riddled with factual errors and misunderstanding, then turns the page to an article on an unrelated subject and reads it as credible, forgetting the lesson of the previous page. Crichton named it after the physicist Murray Gell-Mann, with whom he had once discussed the pattern, and said he chose a famous name partly because invoking it lent the idea more importance than it would otherwise carry.

Facts
Core Claim
Readers who notice a news article is full of errors on a subject they know well still trust the rest of the newspaper on subjects they do not know, effectively forgetting the lesson. 1
First Described Year
2002 1
Classification
Type of Phenomenon
Cognitive Phenomenon 1
Sources
1. Michael Crichton, Wikiquote
  • Why Speculate? (2002)
    You turn the page, and forget what you know.
  • Why Speculate? (2002), speech citation line
    "Why Speculate?" (speech at the International Leadership Forum, La Jolla, California, 26 April 2002)
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