Story Collider is a monthly performance where people tell stories about science. (Think The Moth in a lab coat.) The organizer, Ben Lillie, invited me to tell a personal story about the place of science writing in my life. I decided to talk about a memorable night in South Sudan, when I wondered what I was living for. I told the story to a great crowd at Union Hall in Brooklyn last week. And you can hear the podcast at the Story Collider web site. Check it out.