A book about the fragility and conventionality of the boundaries that separate us from both the past and the future. The reality here, permeated with nostalgia, looks like a hallucination. Who among us has not at least once lamented our mistakes in the past! If only we had the opportunity to live it all over again! And not just like that, but with today’s knowledge! The main character of the novel, Arkady Izmestyev, gets this opportunity. At the cost of betraying his loved ones, at the cost of betraying his principles, he wanted to grab the mythical bird of luck by the tail... What kind of future awaits us with such a shift in emphasis? Where can the sacramental, almost Leninist “plus virtualization of the entire planet” lead? How can such a thing even come to mind?! For a wide range of readers.