> (Also I enjoyed staring at the chart and doing the imaginary color exercise but why are the edges of the newly-perceived colors fuzzy when the shapes are othe

> (Also I enjoyed staring at the chart and doing the imaginary color exercise but why are the edges of the newly-perceived colors fuzzy when the shapes are otherwise sharp?) I'm going to blame the effect of saccades and other motions. If you fixed your head in a rig and used one of those eye tracking apparatus they discuss in the article, presumably the features would be much sharper.