Nearly all controversial issues (i.e., nuclear power, marijuana legalization, and minimum wage increases) have both benefits and drawbacks. Yet our brains resist seeing issues that way. It’s easy for us to believe that our side is fully right, and therefore that the other side is completely wrong. That’s typically what both our own side and the other is convinced of, and usually, we’re all mistaken! Since most of us discuss these controversial issues with people who share our perspective,...