How to Make Cognitive Illusions Disappear

Gerd Gigerenzer

in Adaptive Thinking

Published in print March 2002 | ISBN: 9780195153729
Published online October 2011 | e-ISBN: 9780199849222 | DOI:

Series: Evolution and Cognition Series

How to Make Cognitive Illusions Disappear

Show Summary Details


Cognitive illusions have been linked to perceptual illusions, suggesting that they are “inevitable illusions”. This chapter criticizes the narrow norms that make humans look irrational and shows how to make inevitable illusions “evitable”. These so-called cognitive illusions largely disappear when one pays attention to conceptual distinctions. Cognitive illusions largely disappear due to the following: polysemy — not all probabilities are mathematical probabilities; a mathematical probability refers to a reference class, which may differ depending on the task; and natural frequencies facilitate Bayesian reasoning.

Keywords: cognitive illusions; human rationality; Bayesian reasoning; probabilities; polysemy; natural frequencies

Chapter.  11758 words. 

Subjects: Philosophy

Full text: subscription required

How to subscribe Recommend to my Librarian

Buy this work at Oxford University Press »

Users without a subscription are not able to see the full content. Please, subscribe or purchase to access all content.