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A comment on Civilizational Collapse, Part 4. Parent comment

Re:Civilizational Collapse, Part 4 by enriquto on Tuesday August 27, 2019 @12:21PM (#20811373)
That is not the point. The point is that anything scatters and absorbs the light in a particular way, and we cal this phenomenon the "color" of the object. "Vegetation is green because chlorophyll is green" is deemed a correct answer. The same for the sky and for anything else.

Ref: https://www.explainxkcd.com/wiki/index.php/1818:_Rayleigh_Sc...

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Re:Civilizational Collapse, Part 4 by tlb on Tuesday August 27, 2019 @12:26PM (#20811444)
Substances don't have a single "color". Air, for instance, scatters blue but transmits more red. So if you look at a light source through a lot of air, it's red (such as a sunset) and if you look obliquely to the light source, it's blue.
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Re:Civilizational Collapse, Part 4 by EForEndeavour on Wednesday August 28, 2019 @08:23AM (#20819047)
"Vegetation is green because chlorophyll is green" is a borderline useless answer that intentionally misses the point of the question. Assuming the asker knows what chlorophyll is, all this does is shift the need for explanation one link up the chain.

Try to empathize with someone asking this type of question. Would you be satisfied with the type of answer you support? Would it trigger immediate follow-up questions that are basic rephrasings of your original question?

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