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Salt Fish posted:You can program a computer to tell apart colors though so they exist outside our minds. otoh i had my brain broken a bit when i learned this year (how did i not know, or at least notice the impossible 2d'ness of color charts?) that purple does not have a wavelength but is our brains made-up representation of "a color midway between red and blue which is not green", and while a computer can also do that for us it drives home how fake our idea of colors are.
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Jan 4, 2020 12:20
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| # ¿ May 14, 2024 19:44 |
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sure, i just find the purple case to be especially weird somehow. like, had our eyes evolved to only have two kinds of cones we'd only "see" actual spectral colors (as dogs do), determining the perceived frequency by the intensity ratio, having mixed light always being seen as the average of its wavelengths. but then we got a third cone for sensitivity, and we got the weirdo case where the red and blue cones are excited without the green, which no longer corresponds to a frequency so we just invent a new color for it. and that when we talk about birds with five kinds of cones seeing more color than us they really "see" a frequency decomposition of the light. well, old hat for most people i presume, i had just never thought about it properly.
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Jan 4, 2020 13:57
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sony just showed off a concept car, just grabbing a mazda drivetrain/chassi and decking it out with sony consumer tech on the surface. precisely what i wanted apple to do back in the day. as a company that is actually good at consumer tech.
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Jan 7, 2020 12:51
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