What Is Truth For?Truth is for striving at, for the sake of good collective action. With new media technologies, it seems that falsehoods can spread faster and further than ever. And with new norms of public discourse, while being caught in a lie would once end a politician's career, today it is shrugged off, which has profound implications for democracy. Does the truth no longer matter? This optimist's guide to truth argues that the problem of truth is an ancient one.