👉 Litherness is a concept in physics that describes how much an object or system resembles its surroundings. It is often used to describe the degree of similarity between a physical system and its environment, and can be quantified using the concept of "bend-to-bend" energy. Bend-to-bend is the amount of bending of an object's surface due to external forces acting on it. In a system with a high litherness, the bend-to-bend energy is small compared to the