> The company claims this technology, developed in-house, uses acoustic sensors to listen for the tell-tale sounds of carbon fibers in the hull deteriorating to

> The company claims this technology, developed in-house, uses acoustic sensors to listen for the tell-tale sounds of carbon fibers in the hull deteriorating to provide “early warning detection for the pilot with enough time to arrest the descent and safely return to surface.” It will listen for delaminating or snapping fibers? That sounds kind of wild. They assume it will be a slow linear process giving them enough time to ascend a few hours to safety. At those pressures the carbon fiber hull could (and probably did) implode in a few milliseconds. Forgot if it was a conjecture or reported as fact, but they had dropped their ballast and were ascending. So the sensors might have even worked, it’s just the carbon fiber + titanium pressure vessel didn’t behave nicely like they hoped, giving them enough time.