We are surrounded by miracles created in the private sector, particularly in the digital universe, and yet we don't appreciate them enough. Meanwhile, the public sector is systematically wrecking the physical world in sneaky and petty ways that really do matter. The Jetsons world is our world: explosive technological advances, entrenched bourgeois culture, a culture of enterprise that is the very font of the good life. But there is one major difference, and it isn't the flying car, which we might already have were it not for the government's promotion of roads and the central plan that...