Democracy and Truth: A Short History

"Fake news," wild conspiracy theories, misleading claims, doctored photos, lies peddled as facts, facts dismissed as lies—citizens of democracies increasingly inhabit a public sphere teeming with competing claims and counterclaims, with no institution or person possessing the authority to settle basic disputes in a definitive way.

The problem may be novel in some of its details—including the role of today's political leaders, along with broadcast and digital media, in intensifying the episte...