What are the characteristics of well-established products such as paper, steel, and light bulbs? Well-established products like paper, steel, and light bulbs have a rich history, having endured numerous phases of development and enhancement. These items have witnessed a continuum of refinements over the years, each iteration building upon the last. These improvements are characterized by their incremental nature, each adjustment aiming to enhance the product's efficiency, reduce costs, and increase user-friendliness. The enduring presence of these staples in our daily lives is a testament to the effectiveness of this iterative refinement process, ensuring that they remain relevant and indispensable in various industries and applications