Arthur Shapiro on Twitter: "Winston Smith Illusion: The 70th anniversary of the publication of Orwell's 1984 is perhaps a good time to remember that according to Gestalt psychology, 2+2 doesn't always equal 4. (blog post with demo: https://t.co/IWYCl0UEEk) #Orwell #1984 #1984at70 #TipsForSurvivingRoom101… https://t.co/8CHaHnpE2K"

Professor, American University---I tweet about illusions: perceptual, cognitive, and social. Co-editor: The Oxford Compendium of Visual Illusions

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‏ @agshapiro2

Winston Smith Illusion: The 70th anniversary of the publication of Orwell's 1984 is perhaps a good time to remember that according to Gestalt psychology, 2+2 doesn't always equal 4. (blog post with demo: http://illusionscience.com/the-winston-smith-illusion/ …) #Orwell #1984 #1984at70 #TipsForSurvivingRoom101pic.twitter.com/Xa9V3nQX7t