内容简介：
"No World Warranty" begins with a rewrite of two Nebula Award-recommended novellas about the potential horrors and salvation of nanotechnology. Originally published in "Analog Science Fiction and Fact" as "StarStep" and "The New Land"--latter given Honorable Mention in Gardner Dozois' annual "Year's Best Science Fiction (8th Annual Collection," 1991, St. Martin's: New York]), this adds a concluding novella. Inspired by "The Engines of Creation" by K. Eric Drexler (Anchor Press/ Doubleday: Garden City, New York, 1986), this epic tale describes building a whole new world to settle after Earth is nearly destroyed. But when we get there, it turns out that we're not alone "Analog's" editor Stanley Schmidt writes: .,."You may also notice that many of (Alex's) stories also deal with intelligent beings reaching across barriers to make contact and achieve understanding, whether it's humans with different sets of abilities, or humans and nonhumans with very different ways of living and experiencing the universe. They are, in short, about reaching beyond whatever limitations one might have - and we all have them - to find ways of living rich, satisfying, enjoyable, and rewarding lives. That's what Alex is about, too, and I think you'll enjoy his company as much as I have."