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It's definitely a good way to stay productive, but Ngoc admitted that he did wish he could get some shut-eye. Given the opportunity to speak to the world through Binsky's video, Ngoc appealed to anyone who might be able to help him sleep. After meeting with Ngoc and recognising his reluctance to discuss his life during the Vietnam War, Binsky speculated that PTSD could have something to do with his inability to sleep.