And also (IIRC) the reason Starship abandoned helium COPV tanks and switched to autogenous pressurization.
https://old.reddit.com/r/SpaceXLounge/comments/1lf8huf/preli... ("Preliminary data suggests that a nitrogen COPV in the payload bay failed below its proof pressure...")
There’s no way it’s COPV
It was COPV
(Adapted from https://www.cyberciti.biz/humour/a-haiku-about-dns/)
