It is sometimes surprising to consider how two characters - and their styles - opposite may well be complementary. One would have expected to read the title, and knowing the reputation, sometimes exaggerated, authors, whether this only a settling of accounts with those who have made public enemies. This is - almost - wrong. It is also, above all, a fundamental correspondence, to learn more about the authors and their opinions. Unlike other players, it does not seem absurd to me to see BHL himself as a man of ideas. Even when I do not share his ideas. And which, under similar media exposure to our two authors might actually react with contempt and not by sometimes very amusing account regulations. All in all, a very pleasant correspondence. And it is also a return to a literary genre to confront authors who unfortunately fell into disuse.