What are external observers?

An external observer is someone who can see what’s happening from outside a situation, like watching a game from the stands instead of playing on the field.

Imagine you're in a room with your friends, and you’re all playing hide-and-seek. You can't see where everyone else is hiding because you're part of the game. But if someone comes in from outside the room, maybe your mom, she can see all of you. She’s not hiding or counting; she's just watching everything happen. That's what an external observer does, they watch without being involved.

Think of it like a referee in a soccer match. The players are running around, passing the ball, and trying to score, but the referee is standing on the side, making sure everyone follows the rules. The referee isn’t playing the game, they're just watching it closely. That’s how an external observer works: they see everything that's happening without being part of it.

So whether you’re hiding from your friends or a player in a match, an external observer is like someone who can see all the action clearly, because they're not in the middle of it!