When Twitter users hear out the other side, they become more polarized

There’s a simple story for how the media is driving political polarization. Unlike in yesteryear, when there were three nightly newscasts and two local newspapers, the media today is fragmented, competitive, algorithmic. We watch MSNBC if we’re liberal, Fox if we’re conservative, and CNN if we just want to see people fight; Facebook and Twitter serve us up the news they’ve learned we like; we cocoon into echo chambers of like-minded partisans, opinions, and even facts; we don’t see or hear from the other side, and so of course we’re more polarized. From Vox.