Systems Thinking and Decision Making in Urban and Environmental Planning

摘要

We all doodle, at times idly, at times with purpose. We doodle to think, communicate, and make a point. Professors draw diagrams on the blackboard to explain complicated points for students. Faculty colleagues draw diagrams on the back of an envelope or a napkin to win an argument. Diagrams clarify obscure points, help cook half-baked ideas, generate new ideas (the dining room of our faculty club provides paper placemats and crayons precisely to allow such graphic dialogue), and even to reach those "aha" moments of great insights. We fold the napkin carefully and save it for future elaboration. The famous Laffer Curve apparently was first drawn on a paper napkin.