There is an old story I read years ago that went something like: When you are in grade school science you are told that a car can just be modeled as a cube. I

There is an old story I read years ago that went something like: When you are in grade school science you are told that a car can just be modeled as a cube. In high school you learn you can use 3 cubes. In college you learn you can do with hundreds of cubes. In post-doc you learn to do it billions of points with fractal levels of interaction. When writing the text book for grade school after years in physics academia, you write: "A car can be sufficiently modeled as a cube".