"There was one sequence of days [making Lincoln in the Bardo] when I had halfway decided to use the historical nuggets, but I wasn't quite sure it would work. I'd be in my room for six or seven hours, cutting up bits of paper with quotes and arranging them on the floor, with this little voice in my head saying, "Hey, this isn't writing!" But at the end of that day, I felt that the resulting section was doing important emotional work"