33 Comments

  1. When I crossed my eyes, the center square kept alternating between green and red. But then I closed my eyes and covered them with my hand. The center square in the inverted color image also kept alternating between magenta and cyan. Why did that happen? It’s almost like my retina or brain memorized the order of the alternating red and green color and then created the alternating inverted image in exactly the same order and duration for each color. I’d love to hear the scientific explanation of that.

  2. It's easy
    Red + green = yellow
    Green + blue = cyan
    Red + blue = magenta
    (Btw this is why you saw pink not red when the greed square disapeared, because your green cones get exausted so the red and blue cones fire harder when the white appears)

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