I think he chose some really bad examples. They don't have personal moats, they have personal carrier battle groups. And combining ikigai with the moat analogy

I think he chose some really bad examples. They don't have personal moats, they have personal carrier battle groups. And combining ikigai with the moat analogy was also IMHO a red herring. One has little to do with the other. As a consultant my personal moat is a blend of my experience and current relevant knowledge. My 20 years in IT combined with my and MBA & my deep knowledge of cloud architectures is my moat. Previously it was my 15 years experience and my deep knowledge in automation. What makes my moat changes over time, and if I stop learning new things my moat will vanish.