Motion induced blindness is weird. Really weird. You can stare at an image and watch part of it fade out of existence and then reappear the moment you move your eyes even a little bit.
In the following image, stare at any one of the yellow dots fixedly, but pay attention to the other two in your periphery. They will, after a few seconds, fade out of existence. Move your eyes, even a little, and they’re back, right where you left them.