Notice how unpleasant the color is. ALWAYS it is possible to distinguish a living color from a non-living one, and it will not be difficult. What is the reason. Why are colors in nature always filled with some deepness? This is due to the fact that our bodies of vision are sharpened precisely the format of colors on which all living things are based. Somewhere in the memory to store samples, otherwise how can we distinguish them.
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From @le0nid