This is an extended meditation on the idea that the worlds of biology and technology are converging, with consequences for both. Along the way we meet lots of interesting thinkers and doers and see what sort of crazy things some of them have been up to (Biosphere 2 anyone?).
Kelley’s a pretty good writer and, while all of his theses don’t ultimately mesh together, I can’t recall reading another book with as many densely packed ideas as this one.