Roger Lewin engagingly writes of his discussions with leaders in the field of complexity, the study of non-linear, dynamical systems in the life sciences. Studies in 'chaos' theory and related fields like cellular automata have led to new formulations of self-organization and non-vitalistic emergence in living systems. Although still considered a fringe element by some of their colleagues, people like Stuart Kauffman, Chris Langton, Norman Packard and others are exploring models of "...common dynamical patterns in the realms of physics, biology, and society..." (193) which may radically change our understandings of evolution and consciousness. A cheering trend toward non-aristotelian directions.