Think for a moment about the most powerful people in the world. You probably think of political leaders, judges, business magnates, and religious figures. And all of them probably have important places where they sit. Pope Francis has his papal throne in Rome. Jeff Bezos probably has a certain seat at a huge conference room table. I saw a bizarre picture of Vladimir Putin meeting with financial advisors at the Kremlin. He was at the head of the table. At the other end of the table, about 20...