Oh, yes, you ARE.
First you see it, then suddenly it's gone. A new illusion (see video, above) shows how our perception of objects changes as soon as they start moving.
At first, the ring of dots is motionless and it's easy to tell that the dots are changing color. When the ring begins to rotate, however, the dots suddenly appear to stop changing. The faster the ring moves, the less the colours appear to change. But in reality, they were changing the whole time, at the same rate. As the video shows, the illusion also works for brightness, shape and size.
Source and the rest of the article Interesting, hunh?
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