About the book: 2023 / The Mironovs discover in the basement of the house they bought a door blocked with bricks, which they opened out of curiosity, behind it was a portal to a parallel world - the USSR in 1972 . The Mironovs decide to help the USSR avoid the mistakes of their country and take a different path. With the help of flash drives, they help local engineers increase the productivity of the most powerful computer in the USSR by thirty-two times, and, thanks to this achievement, reach Ligachev - essentially the head of the Tomsk region. Together with him, they built a strategy to reach the leadership of the USSR for the most effective use of the connection between the two worlds, with a development difference of fifty years. Contact with the leadership of the USSR was successful, and the Mironovs began supplying the USSR with modern computers and microchip production technologies, the Internet, the USSR paid for all purchases in dollars and gold, for the legalization of which they had to buy a mine. In seven years, a lot has been accomplished in the USSR, eliminating unnecessary costs for the Energia-Buran space program, the construction of the Akula submarines, etc..