5-MeO-DMT sometimes cancels the Ebbinghaus illusion

During a research retreat studying consciousness, the author experienced a near-complete cancellation of the Ebbinghaus illusion (a visual illusion where circles appear different sizes based on surrounding context) while under the influence of 5-MeO-DMT, a powerful psychedelic. This suggests that psychedelics may sometimes allow clearer perception of objective reality amid their typical visual distortions, potentially offering insights into how consciousness constructs perception. The Qualia Research Institute studies such exotic consciousness states to uncover mathematical principles underlying subjective experience.