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You and a buddy are at 12 metres/40 feet in a free descent without reference to 18 metres/60 feet. The visibility is 5 metres/15 feet, so you can’t see the bottom or the surface. You notice the following happening at the same time: Your buddy waves to get your attention. You realize you’ve lost too much buoyancy and are beginning to descend out of control. You’ve lost your sense of direction. What do you do first? Second? Third? To answer this, you apply a thinking strategy that prioritizes wh