2/ Meaning? It's not like a sudden, "Whoa, everything is black!" It's a "Wait, what? Why do I keep bumping into walls?" It requires conscious interrogation to notice: putting things in my field of vision and realizing, "I don't perceive anything in some places where I should."
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3/ Ignoring the annoyance, it's actually a perennially-humbling experience. Your visual processing system is good. Like, remarkably so. And, it's something that people who aren't blind use constantly.
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4/ Outside of infancy, it's something so well-tuned, that it just works You don't think about it. Except, when it fails. Then, you realize that the you that thinks and the sensor that sees aren't actually the same thing.
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5/ I like optical illusions for this reason. It gives you that same recognition (without the headache). My favorite is Nino's Extinction Illusion. I use it in my dissertation as an analogy to the limits on our short term memory.
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6/ There are several dots in this image, but you can't perceive them all at once. If I asked you to identify the position of dots, you could do so. But, your visual system *doesn't* make it obvious. It's unstable. You have to abstract and extract information.pic.twitter.com/IXASOBAzRS
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7/ I think the way our brain handles beliefs may work the same way. We like to think our belief systems are coherent. But, introspection is hard. We're limited to only a few mental concepts (e.g. 7 +/- 2) at a time.
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8/ When we want to, we expend effort to resolve our Belief Dilemmas (check out Abelson 59) in a piecemeal fashion. But, working memory constrains so things disappear form awareness quiet easily. And, like with vision, we don't necessarily *notice* when important things vanish.
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I get rainbow zigzags that foretell the epicenter of the blind spot… they ripple out. Just me?
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I get that after not before.
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Yep. Sounds like what I experience. I’m now 30 minutes in so the nom-existent vision area is now shimmering light to be followed by a massive headache
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