I tend to be more forgiving of hard SciFi storytelling foibles than other genres and with that in mind, this was...fine? I'm glad I spent the time reading Genesis but I would not generally recommend it.

Which is a shame.

There were some really interesting concepts (the Galaxy Brain, our "heroes" being subsumed by their respective AIs, Gaia, the Earth node of the Galaxy Brain, running simulations of humanity) but the execution was just not there. Even for hard SciFi the story was disjointed and Anderson spent way to many pages building the story and not enough telling the story. In fact, thinking back, the "story" was more a backdrop for the SciFi. It was there, but the editor could have just as easily stripped the story and been left with an essay about the Galaxy Brains and how they communicated (mythically, of course, as Anderson reminded us every other paragraph!).

I think a large part of my disappoint(?) comes from a glimpse we have of Anderson actually telling a story in the middle of the book. For one, maybe two chapters, we have a really interesting and enjoyable glimpse into a society which had, as far as I could tell, no bearing on the story and was never heard from again. I assume it was meant to show us Gaia in action before we really start to learn about her (mythically anthropomorphized, of course) but it read like that chapter was pulled from a different manuscript and inserted into the middle of this book. ( )

La inteligencia artificial ha llegado a un nivel de desarrollo que permite depositar el contenido de la mente humana en un ordenador para lograr una especie de inmortalidad híbrida. El astronauta Christian Brannock da la bienvenida a este avance tecnológico, que le facilitará la consecución de su sueño: explorar las estrellas.
Mil millones de años después, Brannock es enviado a la Tierra para investigar ciertas anomalías. Durante su estancia conoce a Laurinda Ashcroft, otro depósito híbrido. Brannock y Laurinda unen sus fuerzas para investigar a Gaia, la mente suprema que domina el planeta, y conocer la verdad de sus terroríficos planes secretos para la Tierra.

Poul Anderson's Genesis first appeared as a novella in the anthology Far Futures, edited by Gregory Benford, and was later expanded into a novel. In a mood for a known quantity, I picked the novella up for a reread, and liked it enough to reread the novel also.

In the near future, improvement in artificial intelligence leads to conscious machines smarter than humans, and eventually far smarter. Over subsequent millions of years these AIs settle the galaxy, building a network of minds connected by radio: minds engaged in scientific research, philosophical thought, artistic invention, and in other activities that humans cannot comprehend. The story's narration, and the human characters in the novel, can only think of the AI's doings in terms of myth, as though they are gods.

Some humans are invited by the AIs to upload into software form - at times to participate in the great works while wearing robot bodies, but eventually to be merged into a whole they cannot comprehend. Two such are Christian Brannock, a spacefarer from just a century or so after our time, and Laurinda Ashcroft, a counsellor who fought to adapt human civilization to AI predominance long after Christian's day.

One mind, Gaia, watches over Earth, and the solar system that flesh and blood humans could never leave. The brief human era ends and the years mount into the hundreds of millions. The galaxy's other AIs become puzzled that Gaia does not want to save Earth's remaining life from the planet's steady increase in temperature due to the sun's aging. She spends great resources on software simulations of historical periods in the human past - simulations carried out with actually conscious human minds, who must endure all the cruelty of history. And she seems to be editing data transmitted to the network.

A rare spacecraft is sent across the light years to investigate; besides an AI it carries Christian Brannock's upload. While the AI is in intense conversation with Gaia, Christian will be instantiated in software to investigate Gaia's human history simulations, from the viewpoint of this mere human. He will be joined by Laurinda's avatar. Another version of Christian will be downloaded into a robot body to explore physically the hot, future Earth.

Meanwhile, some chapters tell the story of humans unlike any in history, living on the northern coast of a drought-stricken continent, sailing ships out across an unknown sea. Has Gaia secretly recreated the human species?

Poul Anderson's trademark Nordic darkness is well suited to a tale where humans are doomed to fall short in the grand story of mind in the universe. Early in the centuries-long saga of human decline, Laurinda reflects on her weariness from dealing with the mind that will become Gaia: "Those wonders were too great, those thoughts too high." Centuries later, an artist reflects that she could work hard at writing a poem, or just ask an AI to create the poem she would have produced anyway.

Anderson's prose was never quite up to the expansiveness of his ideas, and some of his standard expository techniques feel a bit mechanical here. His political conservatism is also on display; some of the discussion of Earth's climate, contemporary and far-future, suggests too much credit given to 1990s climate denial - though Anderson was too well educated in science to fall completely for that nonsense.

Still, the story is a real contribution to SF's thinking about minds as information processes, and what that may mean for uploading and high intelligence. In a universe of god-like minds, is there room for the merely human? This question maps well to another contemporary question - in a world of billionaires, is there room for the poor and middle-class?

The novel takes the original novella and adds a long prequel about the years of humans' steady eclipse. Most of the story's pleasures lie in the novella, so you might read that instead, if you can track it down. ( )

More than half of this book is the story that was published under the same title in Gregory Benford's anthology, Far Futures. The new material, unlike Starfarers, has a distinct air of rehashing old territory. Not bad, but not particularly recommended either. Enjoyable if it happens to be lying around and you don't have anything new.
( )

One of three fictional treatments of ideas like "the Singularity" and mind uploading that I was inspired to read by a recent flurry of discussions of the ideas in the scholarly literature (_Journal of Consciousness Studies_ vol 17 no 9-10 2010, vol 19 no 1-2 2012, vol 19 no 7-8 2012; _International Journal of Machine Consciousness_ vol 4 no 1 2012; _Journal of Evolution and Technology_ vol 22 no 1 2012). This tale by Anderson involves human minds being uploaded into vast, self-expanding, technological intelligences, the formation of a galaxy-sized network of such intelligences, and a billion-year time span.