When we were finished with what appeared to be our last session with Gabrielle Rifkind, our marriage therapist, Lauren went to pee, as she almost always does at the end of our sessions. Gabrielle asked me what my two new books, which came up during our session, were about. I started with Economic Structure and Maturity, published by Ashgate. I explained that much of the book was about the changing rôle of construction during economic development. In early stages of development, the construction sector’s rôle is to add to the productive capacity of the economy, whereas in the later stages, its task is to maintain that capacity. “Well,” she exclaimed almost triumphantly, “think about what you have just said, but replace ‘economic’ with ‘emotional maturity’.” I promised I would think about it.