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corey_moncure
on Feb 8, 2020
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Stepping Feet Illusion
To me, the colored rectangles appear to be moving at the same speed, but with an alternating intermittent forward motion. The yellow rectangle will jerk forward, then the blue, then the yellow, and so on across the field.
golem14
on Feb 8, 2020
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Hence the name “stepping feet”
lonelappde
on Feb 8, 2020
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That seems the obvious interpretation, and it's strange that the article goes on about "faster/slower" and not "visible/invisible" motion.
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