To answer questions about Hacking Darwin: Genetic Engineering and the Future of Humanity, please sign up.
xndr I'd say the content of Hacking Darwin falls into two categories - the first of which, focused on actual science that's occurring now, has occurred in the past, or will likely occur in the very near future, accounts for the majority of the book. The second part, to me, the exciting bit, is his speculation. Some of it seems fantastical (hydras, for one!) but it's all within a degree of reason. Nothing too wild. If you're looking for science OR visions of the future, this book is for you.