Democratic strategist Simon Rosenberg, who for years went on Fox News as an unpaid contributor, said this week that he is astonished by the “bubble” the network has created for its viewers. Writing on his Hopium Chronicles blog, Rosenberg reflected on the way that Fox has created an alternate reality for its viewers that ensures they almost never have to hear a contradictory narrative. “Fortified and protected by an enormous propaganda machine, the right lives a world of profound untruth and invention,” he writes. “It is, to borrow from one of my favorite TV shows, Stranger Things, the upside …