I don't know that it's possible to overestimate how much I like this book. It's now my favorite of Stephenson's and in the running for favorite overall.I like that it reminds me of topics I learned back in college physics and makes them strangely relevant. Also that it blends philosophy and technology and math in crazy unpredictable ways. I got bogged down in the Baroque series, but not this 890 pager. Suggestion - save your arms. Read it in ebook form.