Book Description: The book "Калашников №4" (Kalashnikov No. 4) is a science fiction novel written by Russian author, Sergey Lukyanenko, and published in April 2017. The story takes place in a dystopian future where humanity has been divided into two factions: the "Technocrats" who possess advanced technology and the "Naturals" who live in harmony with nature. The protagonist, a young man named Ivan, discovers that he possesses a unique genetic code that allows him to evolve at an accelerated rate, giving him the ability to adapt to new technologies quickly. As Ivan navigates this dangerous world, he realizes that the only way for humanity to survive is through the development of a personal paradigm for perceiving the technological process of developing modern knowledge. Plot Summary: The book begins with Ivan, a young man living in a post-apocalyptic world where technology has consumed everyone's lives. He works as a courier, delivering packages between the two warring factions: the Technocrats and the Naturals. One day, while on a delivery, Ivan is attacked by a group of thugs and left for dead. However, he miraculously survives and soon discovers that he has undergone a rapid evolution due to his unique genetic makeup. This newfound power allows him to adapt to new technologies at an incredible pace, making him a valuable asset to both factions.

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