very interesting one 
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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That also functions like the Einstein/Monroe illusion where you get different faces if you stand further away. All the "wibbliness" is created by the high spatial frequencies of the small squares, so blurring it or sitting further away changes the effect.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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