The Demon Haunted World is an old saying from long ago when people believed that things like bad luck and bad things happening were caused by demons. It was thought that these demons would make people sick, ruin crops, and cause other bad things to happen. Today, we know that these things are caused by natural things like viruses, bad weather, or other unfortunate events. So instead of believing in things like demons, we have science to explain why bad things happen. Science helps us learn more about the world and gives us evidence-based explanations for things instead of relying on old superstitions.