Take the eye, our dominant sense organ. If you hold out your arm and look at your thumbnail, that’s all you can see in high definition and full colour at once. Colour ends 20 to 30 degrees outside that core and the rest of your sight is fuzzy. You have two lemon-sized blind spots and blink fifteen to twenty times a minute, which blinds you for fully 10 per cent of your waking life. You don’t even see in three dimensions.
