Anybody likes optical illusions? I’ve come across a few amazing pictures, just now. I was blown away with the animated visual effect in these images, and I was actually convinced they were animated gifs, but they’re actually static.  And it turns out that different people appear to manifest different sensitivities to the illusion. For example, I just have to briefly look at this particular set of pictures (click to open a new window) and it twirls and turns like crazy, almost immediately. However, other people have reported they need to squint like crazy in order to perceive any motion, and they don’t think it’s so impressive, at all. What about you? Try staring to the center of the picture above for a few moments.

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