How Do We Know When Something Is ‘Real’?

Imagine you're playing hide and seek, and your friend hides behind a tree. You can't see them, but you know they’re there, even though you don’t see them. That’s like how we think about real things: sometimes we know something is real without seeing it directly. If you dream of flying, that doesn’t mean you're really flying, but your dream feels real while you're in it. So real means different things to different people.