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Yes. Mythbusters did an episode showing what happens to a human body under deep sea implosion > https://youtu.be/LEY3fN4N3D8 https://youtu.be/LEY3fN4N3D8 It'

• calyth2018 3y ago
  It's ugly, it's only at 300ft, and it's an equivalent of a leaking valve, so they're not going from inside atmosphere to outside pressure in an instant. At their depth, where presumably the carbon fibre let go, it's probably a lot faster too. At least they won't be able to even register what's going on.