• darvocet@infosec.pub
    50·
    4 months ago

    Semi interesting story. Was driving my exwife around the city and noted how the color tint on one of the buildings as cool. It was a checkerboard pattern or something in different shades of blue/green. She couldn’t see it and said it was “glass colored”. She couldn’t really get how the glass was tinted a color.

    Anyways printed out a handful of these and yep, she had partial color blindness. That’s how she found out.

    • TheRealKuni@lemmy.worldEnglish
      342·
      4 months ago

      That’s fascinating! Colorblindness in XX women is very rare! Is her father colorblind?

      As I understand it the genes for our cones comes from the X chromosome. So for women to be colorblind, their mother has to have one faulty X chromosome and their father has to be colorblind, so the woman can inherit two faulty X chromosomes.

      Whereas men just need to inherit one faulty X chromosome from their mother and the Y chromosome from their father.

      (Sorry, I’ve always been fascinated by color blindness. I had a friend in college who was quite bemused by how many questions I had for him when I learned he was colorblind.)

      • modeler@lemmy.world
        34·
        4 months ago

        This is true for only red and green loght detecting proteins (opsins) - the blue opsin gene is on chromosome 7.

        The red and green detecting proteins have an interesting history in humans.

        Fish, amphibians, lizards and birds have 4 different opsins: for red, green, yellow and blue colours. And the blue opsin sees up into the ultra-violet. Most animals can see waaaay more colours in the world than we (or any mammal) can. So what happened that makes mammal vision so poor?

        It’s thought that all mammals descend from one or a few species of nocturnal mammal that survived the catastrophe that wiped out the dinosaurs at the end of the Cretaceous. The colour detecting cells (the cones) need a lot of light compared to ones that see in black-and-white (the rods) and therefore nocturnal animals frequently lose cones in favour of the more sensitive rods for better night vision. The mammals that survived the Cretaceous extinction had also lost the green and yellow opsins while keeping red and blue - basically the two different ends of the light spectrum.

        Consequently today most mammals still have only 2 opsins so your cat or dog is red-green colourblind.

        Why do humans see green? Probably because our monkey forebears, who lived in trees and ate leaves, needed to distinguish red leaves and red fruit (visible to birds) from the green background.

        But how did we bring back the green opsin? A whole section of the X chromosome (where the red opsin is coded) got duplicated in a dna copying mistake and then there were two genes for red opsins. As there are different alleles (versions), they could be selected for independently and so one red opsin drifted up the spectrum to be specific for green. So our green opsin is a completely different gene to the green opsin in fish, birds, etc. This kind of evolution happens a lot which is why, for example, there are many families of similar hormones like testosterone and estrogen. And steroids too.

        • undefinedValue@programming.dev
          53·
          4 months ago

          Why do humans see green? Probably because our monkey forebears, who lived in trees and ate leaves, needed to distinguish red leaves and red fruit (visible to birds) from the green background

          We don’t evolve things cause we need it, evolution is driven by random mutations. Also we keep it if it’s better and helps us stay alive long enough to breed.

          • EldritchFeminity@lemmy.blahaj.zone
            7·
            4 months ago

            I mean, you’re really just arguing the semantics of phrasing.

            Developing the ability to see green through random mutation was potentially an evolutionary advantage that allowed them to become better adapted to survival. Which is what they meant by “needed.”

          • TSG_Asmodeus (he, him)@lemmy.worldEnglish
            6·
            4 months ago

            We don’t evolve things cause we need it… Also we keep it if it’s better and helps us stay alive long enough to breed.

            Why do humans see green? Probably because our monkey forebears, who lived in trees and ate leaves, needed to distinguish red leaves and red fruit (visible to birds) from the green background.

            I feel like OP covered that.

      • darvocet@infosec.pub
        8·
        4 months ago

        That’s interesting!! I don’t know! We went to the eye doctor and they confirmed (she didn’t totally believe me). She wasn’t in contact with her father and I don’t know if she ever discussed it with her mom or sister.

      • EldritchFeminity@lemmy.blahaj.zone
        4·
        4 months ago

        Another possibility is that she’s XY, but the Y never activated, so she developed female but with a single “faulty” X chromosome.

        I don’t remember my biology classes well enough to say, but wouldn’t that also mean that potentially neither of her parents were colorblind, since the Y would’ve come from her father while the faulty X would’ve come from her mother? And, if she were XY in this scenario, wouldn’t that mean that she’d pass that trait along to her kids as well?

        • TheRealKuni@lemmy.worldEnglish
          4·
          4 months ago

          if she were XY in this scenario, wouldn’t that mean that she’d pass that trait along to her kids as well?

          I could be wrong, but I don’t believe XY females (Swyer syndrome) produce eggs and thus cannot bear their own children.

          But a colorblind XX woman who can bear children would give birth to colorblind sons and, if the father of the child is also colorblind, colorblind daughters.

  • Sentient Loom@sh.itjust.worksEnglish
    34·
    4 months ago

    So this is either something vulgar which I (a person experiencing colorblindness) cannot see, or, there are no shapes in those bubbles at all. I think it’s the latter since I can’t see shapes in either bubble.

    EDIT:

    Oh it’s that

    i iI Ii I_

    thing, which I never understood

      • Vespair@lemm.ee
        46·
        4 months ago

        None of which makes sense without the context of what a enormous jackass Buckley had famously been in online spaces for YEARS. It’s not just that loss was a weirdly serious addition to a silly comic, it’s that it perfectly encapsulated the kind of sanctimonious self-important attitude Buckley espoused and instantly turned his shitty online persona into a joke.

        I don’t know if it is genuinely possible to still appreciate loss the way it was without all of the enormity of that context.

      • Sentient Loom@sh.itjust.worksEnglish
        4·
        4 months ago

        It’s really surprising that something so obscure became a meme. What’s the first instance of the comic being represented with line segments like that? How did they come to be recognizable?

        • EldritchFeminity@lemmy.blahaj.zone
          2·
          4 months ago

          The original comic was rather popular at the time, and as a result, it became an early meme before mass-scale meme culture had really taken off besides doge memes and “I can haz cheeseburger.” So it quickly entered the cultural zeitgeist of the early internet because the kinds of people into memes and gamer culture at the time would’ve been about the size of the terminally online crowd today.

  • jj4211@lemmy.world
    201·
    4 months ago

    For those who want to see what at least protonopia might see:

    And for those color blind people that might want a shifted perspective:

    • Lorindól@sopuli.xyz
      2·
      4 months ago

      I remain baffled by this. But since I can barely differentiate red and green in optimal lighting conditions, it does not come as a surprise.

      • jj4211@lemmy.world
        1·
        4 months ago

        Hmm, did it look different from original? Wonder if I messed up and uploaded the wrong thing…

        I can’t see the left ones and the top right is a bit hard for me to see. The bottom right for me is more legible in my first picture.

        • NaoPb@eviltoast.orgEnglish
          8·
          4 months ago

          They absolutely look different from the original.

          Colors seem to have shifted a bit. And they symbols are harder to see. But for me I can still see all of them.