14 of 15 people found the following review helpful
By A Customer
This review is from: Permutation City (Paperback)
In the twenty first century it has become possible to noninvasively scan a human brain and implement the resulting data on a computer: Copies of human beings are alive and well in virtual reality.
Few science fiction writers can run as far with the implications as Greg Egan. Copies are just the premise, and before long we are in much deeper waters as one man begins to question the fundamental nature of reality. It's a magnificent exploration of the true implications of computationalism. If you feel the same when you're scanned and run on a supercomputer, would it feel the same to be run on a billion abacus over a billion years? To be accidentally implemented by the random shuffling of atoms across countless universes? Go read it and feel your mind boggle.