• protist@mander.xyz
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    7 days ago

    This implies that the pencils evolved the same color receptors and optical neurons that humans did

    • theUwUhugger@lemmy.world
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      6 days ago

      Which by far is the least concerning part of sentient pencils with arms and legs spawning offsprings in the white void?

    • AdrianTheFrog@lemmy.world
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      4 days ago

      To see a difference in saturation as less significant than a difference in hue? Yeah I guess but that doesn’t sound that unlikely for something to evolve with, especially as perceived saturation can easily be changed by a glare over the surface or something.

      From a spectral perspective, there’s one that absorbs a lot of red and a bit of green (the blue one), and one that absorbs a lot of blue (the yellow one). Mixing them together, as long as particles overlap eachother and light has to travel through multiple, should result in a greenish hue. The center of the spectrum will still be in a different place from either of the parents even with more than 3 color receptors, while in the top example the center of the spectrum stays in the same space and only the ‘spread’ on the spectrum changes, even with more than 3 color receptors.