The human body is incredibly resilient, but the rapid and extreme pressure changes during a submersible implosion would be beyond what it could possibly withstand. Here is an updated timeline with a focus on the impacts on the body and brain. 0ms: A breach in the Titan's hull occurs. There is no immediate physical sensation for the crew as the speed of this event is beyond human perception. 0-50ms: The water rushing in and the resultant shockwave begin to affect the body. Eardrums would likely rupture almost instantly due to the rapid pressure change. But given the extreme speed of these events, it's doubtful that the crew members would register any pain. 50-100ms: The shockwave would cause immediate and severe trauma to all body parts. The sudden and significant increase in pressure would likely rupture blood vessels and tear soft tissues. Organs such as the lungs and stomach, which contain air, would be violently compressed. This violent compression would be destructive and likely fatal. 100-150ms: The enormous pressure change and the shockwave would cause immediate damage to the brain, likely resulting in instant loss of consciousness. The brain, much like the other organs in the body, would be subjected to intense forces that could cause severe trauma, including potential hemorrhaging and immediate cessation of all neural activity. 150-200ms: At this point, the implosion is complete. The human body, like the Titan, is now under immense pressure. The pressure would continue to damage the body at the cellular level, with cell membranes potentially rupturing and causing widespread tissue damage. It's highly likely that death has occurred by this point, given the extreme physical trauma. 200-1000ms: The immediate physical events have now passed, but the destruction caused by the implosion continues to impact the bodies. Rapid depressurization could occur as the remains ascend, causing further cellular damage due to rapid gas expansion within the tissues.
