A good reason to write a book

One among the reasons, not the only one, why we write a technical book, a novel, or a tale is, paradoxically, to allow ourselves to get rid of the matter. We start thinking about a matter we like, the matter evolves and is being continuously modified in our brain, then we start to write down something to fix it, but this is not enough, the matter is still evolving and, with computers, in reality the written matter is not any more something stabilized. The following step, to stabilize the matter and free your brain so you can devote your thinking to something else, shall be to put it to the knowledge of third persons, the result can be a book, an article, a tragedy……