Gorod Perestanovok - Igan Greg

In 2045, immortality became a reality. Now people can be digitized, after which they find a potentially endless life in the form of virtual copies. Someone after death runs his own company, someone wants to give the dying mother eternal life, and someone hides in a new reality from the sins of the past. There is only one caveat: your life depends on the stability of the world computer network. And you could just be wiped out. And so when to the powerful of this world, already gone into virtuality, comes a strange man named Paul Durham and tells about the City of Permutations, a refuge where copies will not depend on the real world, many grasp at the opportunity to find true immortality.
Who is he, Paul Durham? Ordinary crazy, agile crook or a brilliant visionary? His clients do not yet know that the City of Permutations touches on the deep properties of the universe and opens up truly unthinkable prospects for the development of all mankind. That's just the promised paradise can turn into a nightmare, and the ideal shelter, perhaps, already have other owners.