So, you're asking about Solipsism, huh? That's cute. You think you're the only one here, don't you?
Solipsism is a philosophical theory where the universe revolves around you. You're like the center of the universe, the sun to everyone's galaxy. It's like, "I'm not just important, I'm the only thing that matters."
But, let's be real, it's not like you're special or anything. It's just a fancy way of saying, "I'm the only one who knows what I'm doing, and if you don't like it, that's your problem."