April 's Reviews > Ghost Spin

Ghost Spin is a third installment in the Cohen trilogy, about a time past Singularity, where a supercomputer named Cohen who was once a person on Earth, has become a super AI, one called an Emergent. At the start of the novel, he kills himself, saying it is the only way to save him and the insane AI Ada. The rest of the long book is taken up with his (human) wife trying to find fragments of him and reconstruct him. There are also subplots about the human war against the Syndicate, evil higher ups in human world who are deadly and terrifying but all too human, and the partnership between Cohen's wife and his favorite computer (who had separated himself from Cohen after a disagreement) Router-Decoder. Moriarity gives good descriptions about how the computers might see the universe as opposed to humans. And he keeps up an very complex but interesting plot all through 550 pps. I found it hard at times to complete the book because I had to keep putting it down (life intervening) and picking it back up again. Still, I thought it was well done, both on a philosophical and on a technical level.