The fact that Bridgewater operates under surveillance wasn’t what intrigued me. What intrigued me was why they did it—the principle of the thing. And the principle that drives Bridgewater is “radical transparency.” Founder Ray Dalio and his team believe that if you want a culture that makes great decisions, you need a culture that is growing and learning all the time. So they record their conversations. They challenge one another. They “go back to the tape” the way a sports team might, to study what happened, how they came off, or exactly what was said.