Book excerpt: In a discipline which essentially studies how modern man came to be, it is remarkable that there are hardly any conceptual tools to describe change. This is due to the history of the western intellectual and scientific tradition, which for a long time favoured mechanics over dynamics, and the study of stability over that of change. Change was primarily deemed due to external events (in archaeology mainly climatic or 'environmental'). Revolutionary innovations in the natural and life sciences, often (erroneously) referred to as 'chaos theory', suggest that there are ways to overcome this problem. A wide range of processes can be described in terms of dynamic systems, and modern computing methods enable us to investigate many of their properties. This volume presents a cogent argument for the use of such approaches, and a discussion of a number of its aspects by a range of scientists from the humanities, social and natural sciences, and archaeology.