Hydrogen psychosis (ˈhaɪdrɪdʒən saɪˈkəʊsɪs, a.k.a. Crazy Eye) is an awkward medical condition first described in The Life Aquatic. It is caused by psychological trauma such as being chased by the jaguar shark, or that occurs when experienced divers and instructors are frustratingly stumped by what should be elementary questions like… Who is the deepest diver? Where is the clearest water? Who is Sylvia Earle?

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