Permutation City

By Greg Egan,
The story of a man with a vision – immortality : for those who can afford it is found in cyberspace. Permutation city is the tale of a man with a vision – how to create immortality – and how that vision becomes something way beyond his control. Encompassing the lives and struggles of an artificial life junkie desperate to save her dying mother, a billionaire banker scarred by a terrible crime, the lovers for whom, in their timeless virtual world, love is not enough – and much more – Permutation city is filled with the sense of wonder.