this post was submitted on 30 Dec 2024
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To make it even crazier while we think of color blindness as a binary thing, it's really (like most things) a spectrum.
Everyone has a slightly different ratio of cones. And some have a different amount of cones than others. Then there's the ratio of the different comes to rods.
Take any two random people and they'll likely agree what name a color is, but they both experience that color slightly differently.
There are also the rare tetrachromagraphic people who see 4 colors. Most people have RGB, tetras have an orange receptor.
Yeah, I should have said:
But it's not really like there's distinct type of cones, it's about the wavelength the cones capture based on the angle of the cone.
So while normally theyre: long, medium, or short
They can also be at any point on that scale, and even so far that they're essentially a new type of cone
But every cone is going to be a little different based on its exact shape and everyone has different ratios. Think of it like snowflakes.
If you measure exact enough, no two people will experience the same color, and you don't even between your two eyes. It's just very unlikely to be a noticable difference, and our brains like to do "post processing" stuff to make it similar.