Cryotonomicon is a long book, fortunately I liked the second half more than the first half. I prefer Stephenson's hard science writing more than this historical fiction. I enjoyed the topics to cryptography, privacy, computational ethics, and treasure hunting but it wasn't enough really draw me into the story. I never felt a strong connection with many of the characters and the constant switching of view points was a little annoying and I felt as though the pay off as more of the story was revealed just wasn't what I expected from Stephenson. Also not a huge fan of (view spoiler)[that ending. I thought it was going to keep going. Are we to assume that everything went well after that? Are the antagonists going to let up? It didn't feel very resolved to me. (hide spoiler)] A great book. One I would definitely recommend to people interested in World War II history and cryptography, but not one that I'm going to be rereading too soon.