"Accountability alone fails to prevent deadly mistakes millions of times a day"

...in his desperation to finally win an argument online our hero advanced, grimly ignoring the concept of Engineering.

"millions of mistakes are avoided daily through process, redundancy, independent review, and formal methods."

Ahh spoke too soon, Engineering has finally joined the chat. So what mechanism do you propose lead to the foundation of process, redundancy, independent review, and formal methods?