In that Jalopnik article I listened to the talk by the engineer twice, it was riveting. The stuff from David Pogue is amazing for hindsight. (I met Pogue years ago when he was on our campus for a talk, and I participated in a book he collected, as a lark, all based upon topics he threw out on Twitter. Back when Twitter was an interesting and innocent place.) He's a talented interviewer and charming guest who has focused on high tech (after he stopped fixing Stephen Sondheim's computer and working in musical theater on Broadway).

It should be fair warning to anyone else with a mind to building these submersible vessels with a commercial goal.