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5-MeO-DMT Sometimes Cancels the Ebbinghaus Illusion, Reports Psychotechnology Post

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A Substack post from the Psychotechnology blog reports that the psychedelic compound 5-MeO-DMT sometimes eliminates the Ebbinghaus illusion, a visual effect in which a circle looks different in size depending on the circles surrounding it. The item was shared on Hacker News, where it gathered 9 points and 2 comments. The source article's details, such as the study design, sample size, and how the effect was measured, were not included in the available text. Because only the headline and link metadata were provided, the claim cannot be independently verified from this material.

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