What do atmospheric transmission and the human eyeball have in common? The visible spectrum. The atmosphere transmits it well, our eyes absorb it well. No surprise on the latter part. This is the first time that I had heard about the atmospheric transmission part.
Coupled with atmospheric oxygen that's been riding along at 210,000 ppm for the past couple billion years, I'm starting to think that the atmosphere is just razors-edge perfect suited for we humans.
…I'm kidding! The take-away here is as it should always be: it’s the other way around.
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