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by Terr_ 4365 days ago
Natural rainbows are INCOMPLETE because a prism splits light into SINGLE isolated wavelengths. Can you name the wavelength of magenta in nanometers?

Colors arise from the presence (and absence) of 1...N simultaneous wavelengths triggering a suite of inexact biosensors.

If you ever see magenta in a natural rainbow, it's only because there are two-or-more spectrums are overlapping in a messy and inexact manner.

TLDR: "Color" is to "wavelength" as "taste" is to "chemical".