A brain-bending mirror trick is going viral on TikTok, and many people are baffled by the science behind it. In the original viral video, a TikTok creator holds up a pack of gum to a mirror blocked by ...

There is a quiet absurdity to standing in front of a mirror. You raise your right hand and a stranger raises their left. You wink, and your reflection winks back from the wrong eye. You hold up a book ...