In the sky over our house, three fighter jets scream through the sky—flying in formation so close together they appear to be one. “Wow,” I say to my husband Dan. “Impressive,” he agrees. We live not far from an Air Force Base and it’s not unusual to see such sights.

Every time these jets fly over, however, I have the same question: how can they fly so close together and not lose control? One obvious reason, I learned, is humility. Trusting that the lead pilot is traveling at precisely the correct speed and trajectory, the wing pilots surrender any desire to switch…