The humor writer Drew Magary was at a karaoke bar when his life changed in a flash: He collapsed and cracked his skull. By most accounts, the resulting traumatic brain injury should have been fatal, but he survived. As he recounts in his book The Night the Lights Went Out, recovering from that injury has been tough. Among other things, he permanently lost some of his senses. As Magary tells NPR's Lulu Garcia Navarro, recovery has required him to figure out who he is now, post injury — a challenge that makes for a good story, he says.