Nora is the president of the International Bateson Institute, and one of my favorite ecological thinkers. In this interview Nora explains the current thinking contained in her book called Combining, that came out of an inquiry into the nature of evolution. Nora was asking herself questions about how evolution occurs. How do things evolve? A change fundamental and deep enough can be called an evolutionary change, and what Nora realized was that by the time a change of that magnitude becomes visible, it has been building through unseen influences for a long time.