Humans - the perfect candidates for extinction. Don't ask me why I think that, I don't want to rail on about what we take away and never return. Whether the website maintainers are serious or not, the 'message' is something that is in the human consciousness. I won't advocate voluntary extinction, but I really doubt the planet would suffer one bit if our kind died out. In fact, it had better happen soon or there won't be anything left here!
Creation: "Putting them on Earth was a terrible mistake. Let's try using Mercury as the sandbox next time."
