I think people get fooled and do small mistakes all the time but we easily ignore them because it's corrected by other senses. Like you thought your phone scree

I think people get fooled and do small mistakes all the time but we easily ignore them because it's corrected by other senses. Like you thought your phone screen turned itself on in your side vision but you just left your credit card or something on top of the screen. You can cover someones eyes obstruct visual system entirely, and you'll be fooled for a second until you realize it's probably just your friend because you can feel their hands. Did you fool your friend's visual system? Or does it need to be fooled forever to say you fooled the visual system? So the visual system on its own is not enough as we have many other senses that you'd need to fool in order to fool you entirely. I think optical illusions is a great way to fool the visual system only, but it doesn't fool you. (all your senses) There are magic tricks for that sort of thing, but even then we know it's just a trick. As raverbashing pointed out our visual system is more than just a 2d grid of points with a certain color, so obviously that is easier to fool. When I saw the 32x32 image of the frog with the pixels I wasn't even sure what it was for a few seconds. But I had context, like I know these images are probably things that are easily classified, so it's gotta be some common animal, airplane, car, house, etc. I also knew that I was supposed to ignore the pixels. If you present the frog image with pixels to people on the street and tell them to classify the image, I'm sure many of them will get it wrong if they are given less than 2 seconds to look at it. More so when they're focused on something completely irrelevant.