A 13-year-old with Asperger's syndrome spent 11 days living on NYC subway trains last month. Francisco Hernandez Jr. says he never left the subway system that whole time, subsisting on newsstand snack food and bottled water. He'd run away to avoid punishment at home after getting in trouble at school, but lost his sense of time. "He was prepared, he said, to remain in the subway system forever."
Maggie Koerth-Baker is the science editor at BoingBoing.net. She writes a monthly column for The New York Times Magazine and is the author of Before the Lights Go Out, a book about electricity, infrastructure, and the future of energy. You can find Maggie on Twitter and Facebook.