A great read, and having finished the library copy, I'll probably go buy a copy of my own. Certainly I'll want to re-read it, and there are any number of passages that deserve prolonged contemplation, if not downright study.
One minor tech note: this book did expose a shortcoming of the Kindle experience, at least as far as using the Kindle app on my iPad Mini goes. The typographical characters appearing throughout the book that are not part of the standard set of letters, particularly those that had sub- or superscripts, were pretty much illegible. I boosted the font size, which helped a bit, but in order to get them to where I could comfortably discern them, the plain text had to be ludicrously huge. I don't think this is a failing of what's stored in the electronic file itself, because if I look at this Kindle book in a web browser, the problem is not there. It seems more like it's a limitation of the app itself -- something do with not enough care having been put into the implementation of extended character sets, is my guess.
Granted, there are not so many books where there is a need to display, say, aleph-null or e to the pi*i, but I thought I'd put this report out there anyway. Suggestions about where it might be better directed are most welcome.
[ETA] I should add that this problem is not unique to the Kindle app. For example, if I put in an aleph right here: ℵ, it displays as way too small. To my mind, at least, it should be the same size as a capital letter from the standard character set. (I couldn't add the zero subscript, because that, sadly, is not part of the HTML that Goodreads supports, in comments.)