The two concentric arrays of stars appear to rotate in the different directions when we approach or move away from the figure while fixating at the center.pic.twitter.com/0H0BaNEVqm
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Yes. The up& down I originally described is probably better put as the center & middle discs shrinking & growing in opposition. There may be a slight twist component to the motionb but this is another that I *cannot* look at for long with risking migraine.
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