This book is a clear example of the modern popular science genre. The main thing in it is not information, because it is all on the Internet, and this will not surprise anyone. Interesting for the reader in this genre is the author's subjective attitude to this information, his personal position and judgments, building this information into the logic determined by the author. And if the author understands the problem, is distinguished by originality, imagery, humor of judgments, slight self-irony and doubt about his correctness, then an interesting and very useful reading is provided to you. This book is built on dialogue with the reader, albeit in absentia.