“Systemic polarization, as it is usually told, is a basically symmetrical story. Polarization arises from a social dynamic that afflicts almost everybody. The social forces at play—social mobility, online media bubbles, algorithmic filtering—are pervasive, and their effect is nearly universal. Like-minded individuals naturally clump together and end up boosting each others’ confidence unreasonably. Conservatives and progressives are approximately as vulnerable and approximately as blameworthy. On the other hand, the propaganda story is usually told asymmetrically: one side is stuck in the propaganda machine, the other side fighting against it. It is certainly possible to tell the propaganda story about both sides, but symmetry isn’t baked into its core.” – Boston Review