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5-MeO-DMT sometimes cancels the Ebbinghaus illusion.

LessWrongAnalysis or commentary·
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A post on LessWrong discusses an account of the psychedelic 5-MeO-DMT sometimes cancelling the Ebbinghaus illusion, a visual illusion in which surrounding shapes affect size perception.

Written by AI from LessWrong's published text.

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“Psychedelics produce all sorts of visual distortions: from breathing walls and geometric patterns to complex visual landscapes populated by full-blown entities.”
LessWrong, 08 Oct 2026, 18:43.

Interpretation or community commentary rather than straight reporting.

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