We discuss a concept Dr. Feldenkrais presents in his book Body and Mature Behavior. Which is that there are two paths of development. One is the pathway of improvement in which a person continues to make finer and finer distinctions. The other is the pathway of decline in which a person lumps their experience into larger and larger categories. We discuss this in reference to movement, the Feldenkrais Method®, and hobbies such as painting, gardening, and building.