> Not convinced? Okay, go to a mirror and look repeatedly from your right eye to your left eye. Can you see your eyes moving? You cannot. Now have a friend or partner do the same thing while you watch them. You will see their eyes moving quite markedly. The reason you couldn’t see your own eyes move is because your brain shuts down the image for the instant that your eyes are moving. Experiments have shown that it is impossible to see even a flash of light if it occurs within a saccade.
When you have your phone in selfie mode, the latency is low enough that it can feel like a mirror. When you move, you see yourself in the camera app move. But if you do the above experiment, you can definitely catch your eyes moving. Then you can shut the screen off and do the above experiment using the screen as a mirror and you cannot. It's a neat demonstration of the latency.
When you have your phone in selfie mode, the latency is low enough that it can feel like a mirror. When you move, you see yourself in the camera app move. But if you do the above experiment, you can definitely catch your eyes moving. Then you can shut the screen off and do the above experiment using the screen as a mirror and you cannot. It's a neat demonstration of the latency.