Lame review for an awesome book: House of Suns is the best hard science fiction novel I’ve read in a long time. Reynolds blends a fantasy back-story, relativistic travel, faster than light travel, post hard-singularity time, starships, cloning, nanotech, emergent sentient and semi-sentient AI and tons of other stuff, and somehow makes it work. If you’re into singularity fiction or just like a good hard sci-fi read, you need to pick this one up. It even has a killer ending. 10/10.