Taking risks for the sake of innovation, fine, I guess it has to be done to move forward. However, building a submersible that can go to these depths is nothing new. Been there, done that, basically. To throw all lessons learnt with previous vehicles out with the garbage is just monumentally stupid.

Thing is, as James Cameron pointed out in his interviews, this is not a cutting-edge field. The science of submersibles is well explored and the technologies are mature. Engineers know exactly how to construct a safe submersible to go as deep as you want. There are companies like this that make and sell these submersibles.

This guy was not doing research or experimentation. He was trying to cut costs because he probably couldn't afford a proper submersible under his business model and still make a profit. The only reason for using unconventional materials - materials that are well known to be unsuitable for this purpose - was that he thought he could do it more cheaply if he didn't go through safety certification or buy a sub that had already been certified.

Engineers and scientists do try to do and make crazy things but they try to do it safely, and doing it safely costs money which he didn't want to spend.

I guess the most positive spin is that he risked and gave his life to try new things which can progress things more quickly, but he didn't just risk his own life, he risked the passengers which is unforgivable. If he were doing it solo to not endanger others then I could respect that.

I’d bet they signed release forms which said pretty much exactly that.

Science itself is pretty much like this, trying out stuff and be creative.

absolutely not. he wasn't some creative pioneer exploring the unknown. he was a moron that operated in the environment that is known and explored in great detail and just decided to cut on the costs by ignoring all the best practices.