What is so special about visible light spectrum?
In: 6
the only thing special about the visible light spectrum is that we can see it.
the rest of the spectrum is just light we didn’t evolve or were built to see. as it was either not valuable to our way of life or very difficult to adapt to(probably both most of the time) as bees for example can see uv light but can’t detect colors they evolved a narrower and less complex view of light but with a different range or spectrum. different materials(chemicals) react to light and affect light differently. plants and animals developed pigmentation and color detection within fairly easy spectrum to use(due to availability of elements) to communicate(ie hey human i have a delicious apple ready for you to ingest, fertilize my seeds and poop it out somewhere it can grow.
the same is true of hearing frequencies.
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