You might be missing the fact that members of "echo chamber" like communities often do not have discourse on their viewpoints outside of their echo chambers. Tr

You might be missing the fact that members of "echo chamber" like communities often do not have discourse on their viewpoints outside of their echo chambers. Truthfully few people do, because that isn't as much fun as "fighting the good fight" and experiencing feelings of membership. While communities are prone to confirmation bias and groupthink, or "echo chambers" they also reinforce social norms, provide feedback on statements, and connect people. This is not restricted to online social networks. University communities have people who "think different". Often this leads to wider perspectives, more meta-level discussions, and more historically informed viewpoints. University communities however may not include marginalized experiences, "man on the street" opinions, or "what do the unwashed think." Though this is somewhat less likely as academics do spend time outside of the university grounds like other members of the surrounding population and are exposed to other people and their ideas.