Echo chamber is a symptom of a deeper issue. If you want to have a quality opinion on something, then you need to do serious work on often-gated information.<p>Without that hard, often-gated work, how is anyone supposed to form an independent opinion on something like global warming, models of crime, economic policy, intimate relationships, pedagogy, and so on? So what you&#x27;re seeing is not the discussion of ideas, but rather the negotiation of clan policy and identity.<p>There&#x27;s no policy that you can implement to stop this &quot;echo chamber&quot; or &quot;groupthink&quot;, which are merely symptoms of a deeper issue: that the antecedents of independent opinion on a wide range of phenomena are simply not there, and that obtaining quality is resource-intensive with non-trivial opportunity cost.