Greg Egan is a computer programmer and the author of the acclaimed SF novels Permutation City, Diaspora, Teranesia, and Quarantine, and the Orthogonal trilogy, all published by Night Shade Books. He has won the Hugo Award and the John W. Campbell Memorial Award. Egan's short fiction has been published in a variety of places, including Interzone, Asimov's, and Nature. He lives in Australia.