“Oh, and one other thing. When you find a suitable place, never tell me where it is.” No, you can’t say where it is! Once I know where I am, then the world becomes as narrow as a map. When I don’t know, the world feels unlimited. Garanin nodded again, seemingly pleased this time. “Dr. Luo, you’ve got another trait that satisfies my notion of being a Wallfacer: Your project requires the smallest investment of the four, at least for the time being.”