Instruct: Classify a given review into positive or negative sentiment.
Query: Dull. Very dull.

I can't read this book. I've tried. Out of the hundreds (or thousands) of books I've read, this falls into a very select group of those which I didn't finish. Perhaps 5-10 books... I love Neal Stephenson. I like long books. But I agree with the wealth of other reviewers who had the time to write in depth about why they did not like it. It was a giant disappointment for me.