The story takes place in a post-apocalyptic world, where the sun has fallen from the sky and has caused a catastrophic change in the environment and society. The protagonist is a young man named Arin, who lives in a small village surrounded by ruins of the old world. He is fascinated by the technology of the past and spends most of his time studying and trying to understand how it works. He discovers an ancient book that describes the process of technology evolution and its impact on society. As he reads the book, he realizes that the only way to survive in this new world is to develop a personal paradigm for perceiving the technological process of developing modern knowledge. The plot of the book 'Страна рухнувшего солнца' revolves around the main character, Arin, who lives in a post-apocalyptic world where the sun has fallen from the sky and has brought about a catastrophic change in the environment and society. The story begins with Arin discovering an ancient book that describes the process of technology evolution and its impact on society.

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