A wise man once said that you cannot see yourself in the mirror with your eyes closed.
Doctor Odd invented a mirror with a one second delay.
Sure, it was dangerous to use for shaving, but at least it let him see himself in the mirror with his eyes closed.
“That’s not a real mirror,” said the wise man. “A mirror reflects reality, and that mirror doesn’t.”
Doctor Odd got out a chalkboard and demonstrated that mirrors already have a tiny delay from reality due to the speed of light.
The wise man shrugged. “I said it because I’m blind.”