“I think we should not let the very real dangers posed by echo chambers blind us to the degree to which we need sameness in order just to have a conversation that advances our thinking. The speakers need to share a language, have a deep set of assumptions and norms in common, have the same goal for the conversation — are you passing time, trying to make a friend, trying to make a deal, etc. — and have a topic that they’re both interested in. While too much sameness can lead to an echo chamber, a conversation cannot happen without a Costco-size shopping cart of samenesses.”
– David Weinberger, What the Internet Means for How We Think About the World