In our current marketplace of ideas, the invisible hand is not facilitating democracy by spreading knowledge and diverse perspectives to produce an informed citizenry. Instead, the invisible hand is acting as a puppeteer, manipulating voters and exploiting psychological prejudices in ways that often benefit only a small elite, or populist demagogues. And because this invisible hand emerges naturally from a combination of psychological, political, and economic pressures, without a conspiratorial cabal or Head Propagandist, it manipulates in a way that North Korea could only dream of, and China is presently trying to emulate. But this undemocratic state of affairs is unnecessary: science and real-world experience show how we can repair the invisible hand in the marketplace of ideas by reforming the media system, allowing democracy to function and flourish.