Evolution and the Spiral of Technology

Shennan is a medical doctor whose career dealt with tuberculosis in developing countries, mainly in Africa. For more than 30 years he has been concerned about the technology spiral and its effects. Since retirement in 1992 he has read widely on human evolution and culture and set out to draw together the work of these authors and that of the specialists who have written on the many other disciplines affecting people, so as to achieve an overview of the present human predicament. Also by Douglas H. Shennan: Evolution and the Nature of Reality