The American experiment, the original embodiment of the great Enlightenment idea of intellectual freedom, every individual free to believe anything she wishes, has metastasized out of control. From the start, our ultra-individualism was attached to epic dreams, sometimes epic fantasies—every American one of God’s chosen people building a custom-made utopia, each of us free to reinvent himself by imagination and will. In America those more exciting parts of the Enlightenment idea have swamped the sober, rational, empirical parts.