I dreamt that I was helping the police with some financial scandal involving top politicians. The task was to disentangle a vast web of illegal payments linking the politicians with corporate bosses. Unfortunately, the only thing I remember of the dream is a brief discussion with one of the top inspectors. “Only about sixty percent of what people say is true,” he claimed at some point. I remember being quite surprised by this figure. “Everything I ever say is a hundred percent true,” I told him, “but I do not always say everything I know.” When I woke up in the middle of the night, I ruminated about my claim. I was especially concerned about my writing, where I often skip many things I know. “Is it possible that I skip as much as forty percent?” I wondered. This struck me as a question of greatest importance. Fortunately, I fell asleep quickly enough. When I woke up in the morning, everything appeared to me rather different. The good inspector’s sixty-percent rule is the stuff of dreams.