Prompt
"Generate a realistic image of Leonard Susskind, a middle-aged American physicist, sitting in a lecture hall or a library with a blackboard or a bookshelf in the background, surrounded by notes or equations related to string theory, quantum mechanics, or cosmology. He should be wearing a pair of glasses and a thoughtful expression, with a few grey hairs and a warm smile. Incorporate some visual elements that reflect his contributions to physics, such as a diagram of a black hole or a string theory model. Style: a photograph-like portrait with a muted color palette and a sense of intellectual intensity."
