• diverging@piefed.social
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    1 hour ago

    Because of this we have blind spots, one for each eye. They are not usually noticeable because 1) the blind spot of one eye can usually be seen by the other, and 2) the brain fills in the gap.

    So with this I will perform a magic trick, I will make your thumb disappear: Close your left eye and with your right look at a spot in the background, make a thumbs up gesture and place the tip of your thumb on that spot, move your thumb to the the right continuing to look at the spot in the background, when your thumb moves about 15 cm your thumb should disappear.

    You can use your left eye too, just switch the directions.

    • InvalidName2@lemmy.zip
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      1 hour ago

      It’s way too late at night for all those directions, somehow ended up creating my own blind spot by sticking my thumb in my bum.

      • diverging@piefed.social
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        55 minutes ago

        Well, I guess your thumb disappeared.

        I can try another way the blind spot is about 15 cm at arms length to the right of the right eyes center of vision. So put your thumb there and it should disappear

  • Typhoon@lemmy.ca
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    2 hours ago

    This is one of many reasons the perfect eye argument by creationists is utter bullshit.

    • themeatbridge@lemmy.world
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      2 hours ago

      Ugh that drives me crazy. The human eye is a perfect example of observable evolution. Organisms exist with every stage of eye development, from a photosensitive spot to a more advanced convergent evolution of our eye. And the human eye is poorly designed for it’s current use, resulting in a significant percentage of people requiring corrective lenses.

      • floofloof@lemmy.ca
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        1 hour ago

        It’s a good example of evolving towards a local maximum then being unable to travel through a valley to a more optimal design. As such it confirms exactly what evolutionary theory would predict, and not what “intelligent design by an omniscient creator” would predict.

      • The Quuuuuill@slrpnk.net
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        2 hours ago

        most of the dipshit “the eye is to perfect to have evolved” people also have cheap optics on their rifles. something to think about

      • deus@lemmy.world
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        1 hour ago

        In the lore of Lord of the Rings, it is said that the supreme being of that universe personally created both men and elves and since men were his favorite creations, he gave them the gift of… having pretty short lives (wow, thanks). Well, octopuses have a much shorter lifespan than us, so if our universe’s creator is anything like the Middle Earth’s then there’s a good chance they are his favorites.

  • gedaliyah@lemmy.world
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    2 hours ago

    ✅ Discount number of limbs

    ✅ Cheaply made eyeballs

    ✅ Held together with a bunch of inflexible bones

    Wait, am I just an off-band octopus?

    Damn.

    • diverging@piefed.social
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      2 hours ago

      I don’t think you understand correctly. The cephalopod eye and the fish eye (which includes tetrapods) evolved independently.

  • NounsAndWords@lemmy.world
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    2 hours ago

    I’ve said it for years, as soon as it’s commercially available I’m getting photoreceptors realignment surgery.

    • Kalothar@lemmy.ca
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      1 hour ago

      Uhhhh gonna say we could theoretically, but I imagine the brain has evolved a bunch of other subfuntions to make this work.

      Though I bet you’d adjust super fast if it were only a visual change since our brains are great at adapting