Instruct: Classify Amazon reviews into positive or negative sentiment
Query: hard core singularity scifi

An excellent look at the next century from an author who not only believes in the singularity, but looks beyond to see where it will take us on all levels. Good hard science, but interesting characters too. It's presented as a series of chapters which appear at first almost like a collection of short stories, but in reality they link together seamlessly. This almost put me off when I first saw the structure, but it works brilliantly, and allows him to cover a century in detailed chunks, without having to write a 15-novel saga.If you've enjoyed other Stross novels, or other hard sci-fi writers like Alastair Reynolds, then you will love this book.