Both blue and green eyes in humans and blues and many greens in vertebrates are structural, yeah. Yes the structural coloring could be recreated in fur or skin. (noting that many mammals do structural IR effects in their fur, famously polar bears)
Umbrias
joined 2 years ago
more accurately, orange pigments are readily available. Nothing fundamentally stops mammals (or anything else) from developing a green. Note for example many animals have green eyes.
the diffraction limit of a lens cant really be circumvented optically, it's a fundamental limit of light due to being waves. so some insane refractive index wont help.
You ninja'd me lol. but that's a good point about the interference.
many eyes are near the diffraction limit (for human sized eyes the diffraction limit is around 20/10 vision). To have better accuity you factually need larger eyes. Although it's the size of the lens that matters more than pupil size strictly. The pupil modifies the lens optics but the lens determines the limit.
weve had things beating the turing test since practically the 70s. it's not a useful test unless your goal is to demonstrate the futility of testing this way, as turing largely intended.
that's how it works. Human trials can be 5, 10+ years.
sure, im not saying blindly trust people in all situations. but distrust should be exceptional, not normal.
and your heart could fail at any moment randomly. doesnt make it rational to design your whole life around it. Yes people can betray your trust, but again and again and again it's been shown that people dont betray eachother far far more often than they do. Also, if you're big on Logicβ’οΈ, lying only works if the vast majority of communication is truthful.
the sort of logic that's fundamentally irrational.
and water to cook it and drink, and power to heat it?
view more: next βΊ
The light diffracts before it reaches the lens so this wont help. Also, refraction doesnt change the wavelength of light, it just takes time to bounce and re-emit through the medium.