“From my travels across the imaginary map, I came to realise that there are two types of cities in the world. The first are those you cannot penetrate. Even when you’ve entered this type of city, you are always on the outside, constantly circling its walls. You are always at a distance, never crossing its threshold. The other type, meanwhile, you can never leave. Once you enter, you remain imprisoned there forever. Wherever you go, you are still there. You might combine it with other cities or make it part of bigger ones. You can add cities to it, like adding another layer to a cake, but you can’t get away.”