People tell me about these great authors who write books so deep that no matter how many times they reread the book they discover something new every time--some new perspective, some alternative interpretation, some facet of a character or of the world that they hadn't noticed before. I always assumed this meant there are just authors out there who are amazing, whose books are basically the damn Bible, and people can just read them over and over and it's some kind of damn fractal. My recent brushes with flesh-and-blood readers, however, are forcing me to question this. In a recent scene, a company of women arrives in the middle of a festival, interrupting everything. The first is hunched over and ancient. Behind her are two wolves. Behind those are four women carrying a corpse. There are others behind those; the number winds up being unspecified. When I asked my reader to describe the company, she said, "There were four, and they were all bent over." Asked why they were bent over, she responded that "they were carrying something." Naturally, on rereading, I could expect her to uncover mysterious facets of my world that she didn't notice the first time. I run into this a lot, and I can no longer conclude that it's just my shitty writing. How common is this? What's the deal? Is everyone like that, or is this just something that happens constantly with friends and family who are reading because they want to do something nice for you but who also really don't want to turn off Netflix for a half hour?