<P> As the characters realize the impact of the narrow but critical Roxolani technology for another, generally more advanced society, the story closes with the characters asking themselves, "What have we done?" </P> <P> The story was first published in Analog Science Fiction in 1985 . It is a prequel story to--"Herbig - Haro", set several centuries after humanity has conquered the galaxy--published a year before under the name "Eric Iverson". </P> <P> This short story contains ideas which were later more developed in the Worldwar series, in which the invading aliens have an initial technological edge that is soon surpassed by human ingenuity and innovation . </P>

The road not taken by harry turtledove pdf