If you haven't read it yet, check out this story about a man who survived for three days in an air pocket in a sunken ship on the Atlantic seafloor just off the coast of Nigeria. He was discovered and rescued by a diving team that was there simply to recover bodies. There's a extraordinary moment when one of the divers sees the hand of what he assumes is a corpse, grabs it and then feels it grab back. It's a classic feel good story. The video is amazing. But reading the piece, marveling at this guy's amazing luck, I kept thinking of the countless people who have been in some similar position and met the totally predictable, close to inevitable conclusion of the story - with plenty of time to grasp the sheer hopelessness of their predicament.