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High diving puts the human body through forces most people never experience outside of a car crash. The deceleration on water entry at extreme heights can exceed 50 G's, and the difference between a clean entry and a catastrophic injury comes down to body alignment in the final milliseconds before impact. Divers train obsessively to enter water with their body rigid and perfectly vertical because that position distributes the impact force evenly across the skeleton. Any deviation concentrates th

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