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A comment on What Is a Blazar? It’s Like Staring Down the Barrel of a Black Hole. Parent comment

Re:What Is a Blazar? It’s Like Staring Down the Barrel of a ... by SiempreViernes on Friday July 13, 2018 @04:31PM (#17526433)
Strictly speaking we don't see colours at all, we just hallucinate them from the monochrome response in three (or fewer) filters. So, for example, we commonly confuse mixes of different colours with a colour between them.

In this strict frame of mind, it is not a trivial epistemic statement to say that "the highlight colour at yellow.com is yellow", since your screen can not physically emit yellow light.

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Re:What Is a Blazar? It’s Like Staring Down the Barrel of a ... by AndrewKemendo on Friday July 13, 2018 @05:32PM (#17526897)
Yes, the rabbit hole goes deep in the perception question. Which is why I think it's important that we recognize the nested abstractions when we are trying to describe concepts - especially when they are interpreted from things that we don't have even fundamental perceptual abstractions for.
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