It is tempting to think of the internet as a revolutionary and transformative tool. But neither is really true, contends professor of history and philosophy of science Justin E.H. Smith. In The Internet Is Not What You Think It Is, he argues that the idea has been in the air for centuries and that the lofty aspirations and dreams of its founders—that it would improve society—have died. Some of the observations here are absolute gems, though you will have to follow Smith through some diversions to get to them. Unfortunately, the book leaves the reader hanging at the end and does not deliver on some of its promises.