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Ange on X: "[drawing] a paper model for Kokichi Sugihara's Ambiguous Cylinder illusion - CC BY NC https://t.co/hAbKdL6PxS https://t.co/hJsasm7FWm https://t.co/Loqmg1qdLq" / X
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The arrow illusion still has me scratching my head | Illusions, 3d optical illusions, Visual illusion
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