Theory-Induced Blindness

Key Insight

Theory-induced blindness describes a cognitive phenomenon where, once an individual or community has adopted a theory and integrated it as a tool for thinking, it becomes extraordinarily difficult to identify its inherent flaws. This often leads to a persistent acceptance of theories, even when confronted with observations that do not neatly fit the model.

When encountering an anomaly or a counterexample, the tendency is to assume that there must be a valid explanation that is simply being overlooked, or to trust the collective expertise of those who have accepted the theory. Scholars may intellectually note discrepancies, such as the utility theory's failure to account for reference points, but they often do not pursue these inconsistencies to the point of questioning the fundamental validity of the theory itself.

This intellectual inertia explains how certain conceptions, even those vulnerable to obvious logical counterarguments, can survive for extended periods. Disbelieving an established theory demands significant mental effort and an active System 2, which individuals are often reluctant to engage. Consequently, pervasive flaws can remain unchallenged for centuries within scholarly discourse.