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Livres de 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.
Del lives in a world of many skies: by passing through the Hoops embedded in the ground, her people can walk freely between land that lies beneath a new set of constellations for every circuit they make around the edge of a Hoop.
When archaeologists find a copy of the famed Book of All Skies, Del takes delivery of the manuscript in her role as conservator at the Museum of Apasa, hoping it will shed light on the fate of the Tolleans, the ancient civilisation that produced it. But when the book is stolen, the theft sets in motion a series of events that will see her travelling farther than she had ever imagined possible, and her understanding of her world and its history irrevocably transformed.
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.
Since the Introdus in the twenty-first century, humanity has reconfigured itself drastically. Most chose immortality, joining the polises to become conscious software. Others opted for gleisners: disposable, renewable robotic bodies that remain in contact with the physical world of force and friction. Many of these have left the solar system forever in fusion-drive starships.
And there are the holdouts: the fleshers left behind in the muck and jungle of Earth-some devolved into dream apes, others cavorting in the seas or the air-while the statics and bridgers try to shape out a roughly human destiny.
But the complacency of the citizens is shattered when an unforeseen disaster ravages the fleshers and reveals the possibility that the polises themselves might be at risk from bizarre astrophysical processes that seem to violate fundamental laws of nature. The orphan Yatima, a digital being grown from a mind seed, joins a group of citizens and flesher refugees in a search for the knowledge that will guarantee their safety-a search that puts them on the trail of the ancient and elusive Transmuters, who have the power to reshape subatomic particles, and to cross into the macrocosmos, where the universe we know is nothing but a speck in the higher-dimensional vacuum.
Cérès d’un côté, Vesta de l’autre. Deux astéroïdes colonisés par l’homme, deux mondes clos interdépendants qui échangent ce dont l’autre est dépourvu — glace contre roche. Jusqu’à ce que sur Vesta, l’idée d’un apartheid ciblé se répande, relayée par la classe politique. La résistance s’organise afin de défendre les Sivadier, cible d’un ostracisme croissant, mais la situation n’est bientôt plus tenable : les Sivadier fuient Vesta comme ils peuvent et se réfugient sur Cérès. Or les dirigeants de Vesta voient d’un très mauvais œil cet accueil réservé par l’astéroïde voisin à ceux qu’ils considèrent, au mieux, comme des traîtres… Et Vesta de placer alors Cérès face à un choix impossible, une horreur cornélienne qu’il faudra pourtant bien assumer…
« Greg Egan est l’auteur de science-fiction
le plus important du XXIe siècle. »
Cérès et Vesta a été finaliste des prix Sturgeon et Hugo 2015.
In Yalda's universe, light has mass, no universal speed, and its creation generates energy; on Yalda's world, plants make food by emitting light into the dark night sky. And time is different: an astronaut might measure decades passing while visiting another star, only to return and find that just weeks have elapsed for her friends.
On the farm where she lives, Yalda sees strange meteors that are entering the planetary system at an immense, unprecedented speed - and it soon becomes apparent that more of this ultra-fast material is appearing all the time, putting her world in terrible danger. An entire galaxy is about to collide with their own.
There is one hope: a fleet sent straight towards the approaching galaxy, as fast as possible. Though it will feel like weeks back home, on board, millennia will pass before the collision, time enough to raise new generations, and time enough to find a way to stop the ultra-fast material.
Either way, they have a chance to save everyone back on the home world.
THE HUNDRED LIGHT YEAR DIARY - Scientists can bounce messages from the future back to the present, but there's no guarantee they'll tell the truth ...
LEARNING TO BE ME - Crystalline minds may take the place of human brains, but where does the self really lie?
CLOSER - Lovers exchange bodies and minds, but their experiments go just that little bit too far, proving that you can have too much of a good thing