I followed the captain around to see what he did. He was everywhere: dashing to the engine room, then back to control; running to sonar and from there to the torpedo room. I was exhausted before twenty-four hours were over. I’m not sure he ever slept during the three days I was observing. That ship did well on its inspection, and the inspection team specifically cited the involvement of the captain. I had a sense of unease because I knew that wasn’t how I wanted to run a submarine. Even if it were, I knew I could not physically do what he did.