"M4-0.5" is a science fiction book written by a famous Ukrainian writer. In this novel, the action unfolds in the distant future, where humanity has undergone drastic changes. The main idea of the work is that technology has become an integral part of every person's life, influencing all spheres of existence. In this futuristic world, the author reveals the complex relationship between man and artificial intelligence, showing the advantages and disadvantages of such coexistence. The main character finds himself in the middle of a great conflict, where he will have to make an important choice between saving humanity and trusting the machines. "M4-0.5" is an exciting book that will make the reader think about the future, about the possibilities of technology and about the value of human existence in the world of artificial intelligence.