“The tendrils of current polarization in the U.S. can be traced back to the 1990s or even before. In parallel tracks, an increasingly paranoid and rigid worldview developed across much of the far-right that was driven by radio. On the left, increasing radicalization was spurred through academic channels, i.e., mostly through books and academia.”

How The Social Dilemma Got Social Media Mostly Wrong by Christopher J. Ferguson