The main character is a young man named Ivan, who embarks on a journey through space and time to discover the secrets of the universe and find his place in it. Along the way, he encounters various alien species, some of whom become his friends and others his enemies. He also discovers new worlds and technologies that challenge his understanding of reality. The plot of the book 'За пределами Млечного Пути Большая Вселенная' revolves around the protagonist Ivan, a curious and adventurous young man who sets out on a journey to explore the vastness of the universe and uncover its secrets. As he travels through space and time, he encounters a variety of alien species, each with their own unique culture, language, and technology. Some of these beings become his friends and allies, while others pose a threat to his survival. Ivan's journey takes him to distant planets and galaxies, where he witnesses the wonders of the cosmos and grapples with the mysteries of existence. Along the way, he discovers new technologies that challenge his understanding of reality and force him to question everything he thought he knew about the universe. He must adapt and evolve to survive in this ever-changing environment, and in doing so, he learns valuable lessons about the nature of humanity and its place in the grand scheme of things. One of the central themes of the book is the need for humans to understand and study the process of technological evolution.

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