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Imagine surviving a freak accident and coming out the other side unrecognizable \u2013 not on the exterior, but inside. Where do our personalities live, and how can they shift drastically? In season one, we covered miraculous talents resulting from traumatic brain injury. On this episode, we\u2019ll head to the dark side of personality change with the stories of Phineas Gage, Eadweard Muybridge and someone whose identity became the personae of whoever they were nearest.\xa0