I scrolled across a photograph of myself wearing a sleeveless shirt in the sun. The photographer must have been standing behind me because I couldn’t see my face. Moments earlier, I had been considering getting a tattoo of a bird’s wing on my left shoulder blade. But after looking at the photo, I realized there were already dark shapes and lines covering my other shoulder blade. I had somehow forgotten there was already something there. Disturbed by the discovery, I looked for other photographs of myself, to see if there were other things about me I might not have remembered.