The Evolution of Technological Knowledge: Reflections on Technological Innovation as an Evolutionary Process
This chapter analyses Technological Innovation as an Evolutionary Process, a book that explores the analogy between technical innovation and biological evolution, and whether such an analogy could be developed from a ‘metaphor’ into a ‘model’. After discussing the explanatory power of ‘evolutionary reasoning’, the chapter describes an alternative approach to the analysis of technological innovation. It then presents an evolutionary argument for the growth of knowledge and explains how it differs from neo-Darwinism, and examines rational choice theory in relation to natural selection. It also looks at six elements of Adam Smith's psychological theory of the emergence and development of science: the motivation for generating new ideas; the generation of novelty and the ex-ante selection processes which guide its adoption or rejection; the role of aesthetic criteria both in guiding conjectures and in encouraging their acceptance; Smith's argument that connecting principles which seem to work well are widely diffused; the renewal of the evolutionary process; and the evolution of the evolutionary process itself. Finally, the chapter considers the implications of uncertainty for cognition and the growth of knowledge.