The Science Of Illusions In Four Easy Steps

Many illusions are like spherically curved space. Below on the left (fig. 1 ) is a geometrical illusion, and on the right is a ball with some great arcs drawn on it. Notice the similarities: the distortions in the illusion are qualitatively similar to the non-Euclidean nature of the contours on the ball. Why? Is there something in perception that’s like curved space? figure 1 read more

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