“It’s a rather beautiful discovery: in a world where so many people seem to hold extreme views with strident certainty, you can deflate somebody’s overconfidence and moderate their politics simply by asking them to explain the details. Next time you’re in a politically heated argument, try asking your interlocutor not to justify herself, but simply to explain the policy in question. She wants to introduce a universal basic income, or a flat tax, or a points-based immigration system, or Medicare for all. OK, that’s interesting. So what exactly does she mean by that? She may learn something as she tries to explain. So may you. And you may both find that you understand a little less, and agree a little more, than you had assumed.”