The result of the U.K.'s Brexit referendum blindsided many and led to acrimonious accusations by supporters on either side of the vote. In the U.S., the rapid rise of Donald Trump and Bernie Sanders as presidential candidates has similarly surprised. Those able to properly gauge the public mood have made money, while those without their fingers on the pulse have lost it. This week we speak to Sean Blanda, editor in chief of 99U and the author of a recent article on why "The Other Side Is Not Dumb." We discuss the balkanization of world opinion, why the proliferation of social media ends up dividing us instead of bringing us together, and how best to break out out of one's own ideological bubble.

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