Eli5: the lens of your eye flips the image of what is happening in front of you and displays it on your retina, then your brain “flips” it again for you to perceive. What is the brain doing for that second flip?
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Your brain doesn’t know that the image on the retina is inverted, and it doesn’t need to. All it needs to know is that a signal from a particular neuron corresponds to detecting light in one area of your vision, and a different neuron corresponds to a different area.
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