As much as I like the idea of libertarianism, I must disagree with this. There is just too much evil in the world and too many people (me, you and everyone we know included), are prone to the bad influence of possesing great power. We (as humanity) NEED laws in order to survive. Even if there were such an island, where we could make our own rules and laws, the outer world would not approve of this and our wonderful moment of fame would have a very limited duration. It doesn't just sound utopian, it is an utopia.