"We are at a very exciting moment in history, perhaps a turning point, said Ilya Prigogine, who won the 1977 Nobel prize for a theory that describes transformations, not only in the physical sciences but also in society—the role of stress and "perturbations" that can thrust us into a new, higher order. Science, he said, is proving the reality of a deep cultural vision. The poets and philosophers were right in their intimations of an open, creative universe. Transformation, innovation, evolution—these are the natural responses to crisis. The crises of our time, it becomes increasingly clear, are the necessary impetus for the revolution now under way. And once we understand nature's transformative powers, we see that it is our powerful ally, not a force to be feared or subdued. Our pathology is our opportunity."