Echo Chambers Don't Cause Polarization

Out-group animosity makes exposure to opposing ideas unattractive.

Recently, Tim Keller reviewed Duke professor Chris Bail’s book Breaking the Social Media Prism. I read Bail’s book earlier this year, and I thought it was good, even though I quibbled with some points here and there. Bail, and Keller, dig into how social media is more about building identities than sharing ideas, and their digging is insightful. In the …