This is an instance of the color-dependent Fraser-Wilcox illusion (Kitaoka, 2014, Perception, 43, 914-925.). It is supposed that disks appear to rotate. May I ask you how you see illusion?pic.twitter.com/DueoO24CMZ
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another instance of the crater illusion with motion illusionpic.twitter.com/ZyTg5HsAHI
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