A rectangular door is still a rectangle in your mind, even when it’s swung open at a sharp angle.
You know your 6ft tall friend hasn't turned into a hobbit just because they’re standing 50 yards away. perceptual constancy
Even though the actual image hitting your eyes (the sensory input) changes constantly based on distance, angle, or light, your brain keeps the "perceived" object stable so the world makes sense. A rectangular door is still a rectangle in
Your brain "subtracts" the lighting so a red apple looks red whether it's under a blue fluorescent bulb or golden sunset. Your brain "subtracts" the lighting so a red
Ever wonder why you don’t freak out when a car drives away and "shrinks" to the size of a toy? Or why your white sneakers still look white at a dim house party? That’s at work.
Without it, the world would be a chaotic, flickering mess of unrecognizable shapes. We wouldn't even recognize our own loved ones if they tilted their heads!.