Every American with an interest in social justice and the future of our urban economies should watch two paradigm-shifting visual productions from last summer. One is a Hollywood film, and the other is an hour-long mayoral presentation to business leaders. Both are about Detroit, and both offer valuable insights into the roots of today’s political and economic rancor. They testify to the value of the popular adage: “Everyone is entitled to his own opinion, but not his own facts.”