Triple O-ring, flange with a twist lock and a dozen stud bolts.......................
These two things we discussed are only the biggest failures of this diving vessel.
Also from what I have read is a complete lack of safety equipment and basic fail safe design.
I believe his decision not to hire 50 something expert white guys has less to do with his desire to hire inspiring young men but his desire not to deal with those who would want to build a more expensive but safer vessel.
He didn’t want people around that would tell him how wrong he is and how dangerous his submarine was.
I have worked with a lot of US Navy submariners my entire working life. I am not an expert by any means but I am aware of the basics.
I don’t think anyone I know would go down in that thing.