One of my favorite things about physics is that, e.g., a giant star like Betelgeuse is not a perfect sphere but a really lumpy thing because of complex internal dynamics (e.g., radiation pressure versus its atmosphere's low surface gravity).

But the closer something comes to becoming an abstraction, like an electron as a point particle or a black hole, the fewer traits it has and the more it conforms to purely theoretical expectations. Like black holes rotating at nearly the speed of light.