everyone is intransigent now ... Social media acts as a massive collective Sorting Hat, silently assigning most of us to filter bubbles wherein our beliefs and biases are rarely challenged. News (or “news”) sources rise up to cater... slowly, these isolated groups do what isolated groups do... become more extreme. Increasing extremity in one group…

a research paper ... found depressing proof that the web is fuelling segregation.... matched the attitudes of those who did and did not have broadband with data on partisan hostility... Greater use of the web ensured that an admirer of Jon Stewart would think that conservatives were not just mistaken but stupid, or a viewer of Fox News would wor…