Children of Time

In this story, the future is particularly depressing and hopeless. The peoples of earth have begun colonizing other moons and planets with the help of science fiction ‘inventions' of cryogenics and some limited terraforming. Human tensions escalate beyond belief and earth is basically destroyed before any of the colonies are self-supporting. At the same time that war is begun, we are introduced to an implausible ‘nano-virus' that becomes the crucial sci-fi element of the book.