There is much in this book that is thought-provoking and interesting, and there are no regrets for having invested the time and effort in reading it. While the book is not a difficult read - Mr. Kelly's prose is clear and pleasing - it is a challenging read in that it requires an occasional pause to fully consider what exactly is being proposed in the author's seductive writing style. It is hard not to admire the author's deep knowledge of and passion for the subject, but reasonable people will disagree as to the content.
First, the positives. There are excellent overviews of the historical development of science as well as the concept of convergence that recurs in scientific and technological development (and also, as the author points out, in film-making). The case for considering technology as a self-perpetuating organism is forcefully made, and examples of parallels between evolutionary development and technological development are treated in depth.
There is also a helpful discussion about man's relationship to technology, covered in three chapters collectively called Choices. Here Mr. Kelly views the perspective of the Unabomber, the Amish, and a proposed contemporary search for a convivial relationship. As odd as it sounds to use the Unabomber as a lens through which to view technology, it is extremely powerful. The obvious point is that it is quite unthinkable to live without technology (Ted Kaczynski typed his manifesto and rode a bike), so that finding a personal balance with it should be the goal (preferably one that does not include bombs - either mail-bombs or the nuclear variety).
Second, the controversies. If I correctly interpreted what Mr. Kelly has to say about technology, it is something like this: technology (or his word, technium) is the sum total of man's progress, or "8,000 years of embedded human knowledge" and that it includes all the progress man has made (resulting in extended life spans, creation of leisure, etc.). Because this technium is "an outgrowth of the human mind" it is an extension of life itself. Further, this technium has reached such an advanced stage that it has now developed into an independent organism.
From there Mr. Kelly stretches for his ultimate conclusion, "the technium expands life's fundamental traits, and in doing so it expands life's fundamental goodness." What does technology want? Goodness, apparently. Technology is postured as some benevolent god, created by man in man's own image (which is an idea that should be terrifying).
For technology geeks and techie true believers I can understand how this book could rate five stars. Mr. Kelly is a compelling evangelist for technology. But as for the rest of us, while we acknowledge technology's benefits, we probably have already made our peace with technology at less than unqualified love (perhaps a "love-wariness" relationship?). Looking back to the editorial review on the product page, the book is described as a "visceral" expression, and that is absolutely correct. This book contains Mr. Kelly's personal, inward feelings on technology, not, despite the trappings, a consciously scientific study of the subject.
Read this book and enjoy this book, but be prepared to occasionally shake your head and say, "Really? He can't possibly believe that." Technology deserves our ambivalence precisely because it was created by man and is an extension of man, and therefore has all our potential for both good and bad.