It's fast-paced and subversive: nanomachines dismantle all life on Earth and send everyone to a virtual world, and you're still only on page 20. Postsingular turns the singularity, the mythical moment when we all transcend our humanity and become cyberer, into something much weirder and more ambivalent. Just as other cyberfiction is becoming more cautious in its predictions, Rucker takes wilder and wilder leaps into outer possibility.