Paul Durham keeps making Copies of himself: software simulations of his own brain and body which can be run in virtual reality, albeit seventeen times more slowly than real time. He wants them to be his guinea pigs for a set of experiments about the nature of artificial intelligence, time, and causality, but they keep changing their mind and baling out on him, shutting themselves down. Maria Deluca is an Autoverse addict; she’s unemployed and running out of money, but she can’t stop wasting her time playing around with the cellular automaton known as the Autoverse, a virtual world that follows a simple set of mathematical rules as its “laws of physics”. Paul makes Maria a very strange offer: he asks her to design a seed for an entire virtual biosphere able to exist inside the Autoverse, modelled right down to the molecular level. The job will pay well, and will allow her to indulge her obsession. There has to be a catch, though, because such a seed would be useless without a simulation of the Autoverse large enough to allow the resulting biosphere to grow and flourish — a feat far beyond the capacity of all the computers in the world.

Immortality can be yours . . . at a price Permutation city is the tale of a man with a vision - how to create immortality - and how that vision becomes grows 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 and dread. Can what makes you human be distilled into data? And what happens if you can't afford to pay? Readers are having their minds blown by PERMUTATION CITY: "Egan tells the story masterfully. I can only marvel at how he finds his inspiration for a high-tech tale in an ancient wisdom like Kabbalah, and then proceeds to out-Kabbalah even the Kabbalists with his creativity" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐ "Egan questions what it really means to be human in a way that it's quite unsurpassed in my mind" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐ "THIS is why I read SF. THIS is the sense of wonder I'm looking for in a SF story. Forget everything you read about virtual reality, artificial life & consciousness - nothing compares to the concepts and the worldbuilding in this book. This is ultimate postcyberpunk ever" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐ "I can say without qualification that Greg Egan is the greatest science fiction author I've ever read" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐

Immortality can be yours . . . at a price Permutation city is the tale of a man with a vision - how to create immortality - and how that vision becomes grows 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 and dread. Can what makes you human be distilled into data? And what happens if you can't afford to pay? Readers are having their minds blown by PERMUTATION CITY: "Egan tells the story masterfully. I can only marvel at how he finds his inspiration for a high-tech tale in an ancient wisdom like Kabbalah, and then proceeds to out-Kabbalah even the Kabbalists with his creativity" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐ "Egan questions what it really means to be human in a way that it's quite unsurpassed in my mind" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐ "THIS is why I read SF. THIS is the sense of wonder I'm looking for in a SF story. Forget everything you read about virtual reality, artificial life & consciousness - nothing compares to the concepts and the worldbuilding in this book. This is ultimate postcyberpunk ever" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐ "I can say without qualification that Greg Egan is the greatest science fiction author I've ever read" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐

In 2975, the orphan Yatima is grown from a randomly mutated digital mind seed in the conceptory of Konishi polis. Yatima explores the Coalition of Polises, the network of computers where most life in the solar system now resides, and joins a friend, Inoshiro, to borrow an abandoned robot body and meet a thriving community of “fleshers” in the enclave of Atlanta. Twenty-one years later, news arrives from a lunar observatory: gravitational waves from Lac G-1, a nearby pair of neutron stars, show that the Earth is about to be bathed in a gamma-ray flash created by the stars’ collision — an event that was not expected to take place for seven million years. Yatima and Inoshiro return to Atlanta to try to warn the fleshers, but meet suspicion and disbelief. Some lives are saved, but the Earth is ravaged. In the aftermath of the disaster, the survivors resolve to discover the cause of the neutron stars’ premature collision, and they launch a thousand polises into interstellar space in search of answers. This diaspora eventually reaches a planet subtly transformed to encode a message from an older group of travellers: a greater danger than Lac G-1 is imminent, and the only escape route leads beyond the visible universe.

As a young boy, Prabir Suresh lives with his parents and sister on an otherwise uninhabited island in a remote part of the Indonesian peninsula. Prabir names it Teranesia, populating it with imaginary creatures even stranger than the evolutionarily puzzling butterflies that his parents are studying. Civil war strikes, orphaning Prabir and his sister. Eighteen years later, rumours of bizarre new species of plants and animals being discovered in the peninsula that was their childhood home draw Prabir's sister back to the island - Prabir cannot bear for her to have gone out alone and he follows, persuading a pharmaceutical researcher to take him along as a guide.

Nightmarish machines have driven humanity into the depths of space. The survivors are forced to adapt to a planet filled with monsters.

Instantiation is a collection of 11 stories by the Hugo award winning author Greg Egan: “The Discrete Charm of the Turing Machine” “Zero For Conduct” “Uncanny Valley” “Seventh Sight” “The Nearest” “Shadow Flock” “Bit Players” “Break My Fall” “3-adica” “The Slipway” “Instantiation”

It's late in the 21st century and bioengineering is now so common that people are able to modify their minds in any way they wish. It is an era which has been shaped by information systems so vast that security, in any form, is easily breached. Now you can be whatever you want to be, and do whatever you want to do. On Earth anyway. One night, thirty three years ago, the stars went out. 'The Bubble' - a perfect sphere centred on the sun - appeared in the sky, isolating the solar system from the rest of the universe. For thirty-three years, humanity has lived with the religious cults and terrorism which spawned in the wake of the darkness. We are now alone. Humanity has been cut off. Quarantined.

Greg Egan is arguably Australia's greatest living science fiction writer. In a career spanning more than thirty years, he has produced a steady stream of novels and stories that address a wide range of scientific and philosophical concerns: artificial intelligence, higher mathematics, science vs religion, the nature of consciousness, and the impact of technology on the human personality. All these ideas and more find their way into this generous and illuminating collection, the clear product of a man who is both a master storyteller and a rigorous, exploratory thinker. The Best of Greg Egan contains twenty stories and novellas arranged in chronological order, and each of them is a brilliantly conceived, painstakingly developed gem, including the Hugo Award-winning novella "Oceanic", a powerful account of a boy whose deeply held religious beliefs are undermined by what he comes to learn about the laws of the physical world. This book really does represent the best of Greg Egan, and it therefore takes its place among the best of contemporary SF. Startling, intelligent and always hugely entertaining, it provides an ideal introduction to one of the most accomplished and original writers working today. This is an important and provocative collection, and it deserves a place on the serious science fiction reader's permanent shelf.

Seth is a surveyor, along with his friend Theo, a leech-like creature running through his skull who tells Seth what lies to his left and right. Theo, in turn, relies on Seth for mobility, and for ordinary vision looking forwards and backwards. Like everyone else in their world, they are symbionts, depending on each other to survive. In the universe containing Seth's world, light cannot travel in all directions: there is a “dark cone” to the north and south. Seth can only face to the east (or the west, if he tips his head backwards). If he starts to turn to the north or south, his body stretches out across the landscape, and to rotate as far as north-north-east is every bit as impossible as accelerating to the speed of light. Every living thing in Seth’s world is in a state of perpetual migration as they follow the sun’s shifting orbit and the narrow habitable zone it creates. Cities are being constantly disassembled at one edge and rebuilt at the other, with surveyors mapping safe routes ahead. But when Seth and Theo join an expedition to the edge of the habitable zone, they discover a terrifying threat: a fissure in the surface of the world, so deep and wide that no one can perceive its limits. As the habitable zone continues to move, the migration will soon be blocked by this unbridgeable void, and the expedition has only one option to save its city from annihilation: descend into the unknown.