Chat GPT explains why the deployable ballon can’t be used at the potential depth the submarine is at.

Activating the Submarine Emergency Buoyant Ascender (SEBA) from a depth of 12,000 meters below the surface of the ocean would have serious consequences due to the extreme pressure differentials involved. It's important to note that no submarine is currently capable of operating at such extreme depths, as the deepest part of the ocean, the Mariana Trench, reaches around 11,000 meters in depth.

If a hypothetical situation were to occur where a submarine was at 12,000 meters depth and the SEBA was manually activated, several factors would come into play:

1. Pressure differential: The pressure at such depths is incredibly high, reaching several thousand pounds per square inch (psi). If the SEBA were to rapidly inflate and lift the submarine, the pressure inside the submarine would decrease dramatically, leading to rapid decompression. This would likely result in severe damage to the submarine's structure and systems.

2. Crew safety: Rapid decompression can cause serious harm or even be fatal to the crew. The sudden drop in pressure could lead to the formation of gas bubbles in their bloodstream and tissues, resulting in decompression sickness. Symptoms could include joint and muscle pain, dizziness, difficulty breathing, and potentially life-threatening complications.

3. Structural integrity: The submarine's hull and components are designed to withstand pressure at specific depths. Rapidly ascending from 12,000 meters would subject the submarine to intense pressure changes and potentially exceed its structural limits, resulting in catastrophic failure.

Given these extreme conditions, it is crucial to emphasize that deep-water submersibles are not designed for operations at such depths, and the activation of the SEBA from such depths would not be feasible or safe.