15. Mirrors Don’t Actually Reverse Left and Right — They Flip Front to Back

When you stand in front of a mirror and raise your right hand, it looks like your “left” hand is raised. But the mirror isn’t reversing left-right; it’s reversing front-back. Your brain just interprets the flipped depth as a left-right swap because we’re used to turning around to face someone.
This optical illusion has fooled you since childhood, yet you’ve never truly noticed until someone explains it. People over 35 who’ve checked their appearance daily now stare at mirrors wondering how such a basic everyday object tricks the mind so perfectly.