The U.S. Coast Guard said Thursday a remote operated vehicle (ROV) discovered a "debris field" near the Titanic wreckage site where a submersible went missing.
I really didn't care too much about what was going on until last night when I realized the horror of sitting in a metal tube, knowing you probably won't be rescued with a ticking timer of when your resources would run out. It seems like the perfect horror movie but irl. I hope implosion was the cause because the alternative has cause my brain to go into a full panic / existential mode and I am just an observer.
Especially considering that one of the alternatives was, because the sub is bolted in from the outside, they could have been bobbing on the surface, suphocating.
Thankfully, if the water pressure is enough to crush the steel hull of a submarine, then you'd be obliterated before you could even think about it. That's probably the best way to go in such a situation...
Unfortunately no, losing oxygen in a submarine is a bit different than losing it at altitude. The thing that makes you feel like you're choking is the relative amount of CO2 in the air you breath. At altitude, the CO2 you exhale dissipates into the atmosphere and you drift off to sleep from hypoxia. In an airtight container the CO2 has nowhere to go, so you'll die of CO2 poisoning way before you die of hypoxia. The worst headache you've ever had, your blood feels like battery acid, vomiting, confusion, then death. Not fun.