Omnifarious Posted February 8, 2021 Report Share Posted February 8, 2021 As I understand it, there is a finite number of photo receptors in our eyes, laid out in an irregular mosaic. When light enters our eyes and strikes the retina, the photo receptors send an electrical signal along a chain of nerve cells to the brain. The Brain knows the signal came from a photo receptor because it knows where each and every nerve it wired to. Kind of like a security guard sitting at a control panel, if an alarm is tripped a light comes on, the guard knows where the intruder is because the light is labelled. From there the brain cobbles the signals together into our perception. But this is what bothers me. Does this mean we can only perceive a finite number of different images? Based on what I know, what we see must be made up of dots, each one a solid signal streamed from a photo receptor in our eye. I found an article that said that's exactly what happens, that the eye is like a digital camera and the brain smooths out the image so wee don't notice. They had this image: But all digital cameras have a finite number of possible images they can capture, it's an inescapable result of their basic mechanism. There was even an art exhibit, a machine programmed to create every possible digital image by going through all the combinations. I'm afraid that our eyes have the same limitation, if what we see is made up of organic "pixels", even if each one can light up at an infinite variation of intensities, it's still those fixed dots and each one a solid colour right? It would be like looking at the world through a colander but each hole shows only one solid colour, there are going to be things in between that you simply can't see. Is this how eyesight works? This has been on my mind for a long time. Quote Link to comment Share on other sites More sharing options...
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