A classic of science fiction with a "hard" premise: how can one fight a long-distance war in the presence of relativity? Haldeman's conclusion is insightful: in travelling to battle your technology becomes old compared to those you'll fight when you arrive, which given the speed of technological advance places the attacker at a huge disadvantage. He gives his physics human scale and a prosaic, if perfectly believable resolution.
Finished on Sat, 17 Nov 2018 06:42:55 -0800. Rating 5/5.