Optical illusions have a way of making us question what we’re seeing, even when we’re sure our eyes are working just fine. They fool the brain not because we’re careless or inattentive, but because our vision and our mind sometimes interpret the same scene in completely different ways. And now, one simple photo has the internet scratching its head.
It shows six girls sitting close together on a couch. Nothing unusual there—until you try to count their legs. No matter how many times people looked, only five pairs of legs seemed to appear. One pair was mysteriously missing.
