I have read several books of dialogues, trialogues and now quadrilogue goshawks turn of mathematics, and I always draw a sense of dissatisfaction linked to either a lack of development of responses, to an imbalance in quality, relevance, stakeholder responses from the one against the other. This work strengthens me in my opinion that if this type of meeting can a great radio show is not at all suited to the book.
Although one or the other sometimes deliver interesting thoughts, instructive, all seems to me generally means.