In a sense, all technology is biotechnology: machines interacting with human organisms. Technology is designed to overcome the frailties and limitations of human beings in a state of nature -- to make us faster, stronger, longer-lived, smarter, happier. And all technology raises questions about its real contribution to human welfare: are our lives really better for the existence of the automobile, television, nuclear power? These questions are ethical and political, as well as medical; and they even reach to the philosophical (...) and spiritual. On the whole, we seem pretty well adapted to our technology, at least on the face of it -- but there have always been doubts about whether the human soul thrives best in the oppressively technological world we have created for ourselves. (I am continually struck by how much time I have to spend fixing the machines that supposedly improve my life.). (shrink)