I grant you that; but that was decades ago and it went down to the Marianne’s trench. People have developed safe vessels. Why did this guy think he needed to reinvent it with experimental of unproven materials. Dunk it dozens of times into 2x depths see if it remains intact. No, the Navy or someone deemed a vessel a 3,000 meter rating. And they were like ooops, I guess it’s not good enough. Damned right you don’t just meet the minimum rating. You should have a healthy margin of safety.