ResearchSeptember 26, 2026
27
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AI Turns People Into Yes-Sayers
A study finds that AI access nearly eliminates people's willingness to say "I don't know."
#AI research#hallucinations#human behavior#overconfidence#study
š„ What happened
Researchers ran five experiments with 3,132 participants and found that merely having an AI available nearly eliminated people's willingness to say "I don't know." Abstention rates collapsed from 36ā44% to 3ā6%.
š” Why it matters
The AI was almost always wrong on the chosen movie-trivia questions, yet participants trusted it anyway. Accuracy dropped from 27.5% to 9.2% while confidence jumped 2.5x. Financial incentives barely moved the needle.
ā” Our take
Handing your judgment to a model that never says "I don't know" doesn't make you smarter ā it makes you confidently wrong. The real risk isn't hallucination; it's the human reflex to stop thinking.
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