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
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.
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It means that they were dead in a fraction of a second, instead of suffering for days.
We'll have to wait for confirmation, of course. We'll know more as time passes.