Like so many others, I've been following news on the Titan submersible loss. I read today that they've found a debris field in the search area. https://apnews.com/article/missing-sub-titanic-search-live-updates-c2470ab6159caf32ca11010d4f4ce5e7
Follow
If the debris found is remains of the submersible, this is... good news, in a very sad way: it most likely means the vehicle imploded. And if it did, the deaths of the occupants was so fast that they were dead before their brains could even register anything.
We'll have to wait for confirmation, of course. We'll know more as time passes.
It means that they were dead in a fraction of a second, instead of suffering for days.