“Well, I wonder—and this is just speculation, so don’t laugh—I wonder whether we could find a form of communication that only humans can comprehend, but which the sophons never will. That way, humanity can be free of sophon monitoring.” Luo Ji looked at her for several seconds, and then stared at the Mona Lisa. “I get what you mean. Her smile is something that the sophons and the Trisolarans will never understand.”