I think of many things, but your post made me think of my son who just went off to college to study computer science. We were having a video call with him and asked for him to show his dorm room. He spun the camera around to quickly to get a great view, but my husband asked if he had anything on the wall. He said his roommate did, but he didn't. My husband said he should probably have something on his wall. My son replied, "what? like the Mandelbrot set?" That's how my son thinks and the rest of us are enough like that to know exactly what he was talking about. I think my son is getting a Mandelbrot set poster for Christmas.