Maybe if you have to pass a certain level to start, and then you have a bunch of different kinds of things to learn, but each person gets to specialize in what they do/like best so the test covers both breadth and depth of learning. It would probably take a few years, but the administrator could provide some sort of general certificate of intelligence+grit that potential employers and spouses could check without having to administer the test themselves?
Maybe if you have to pass a certain level to start, and then you have a bunch of different kinds of things to learn, but each person gets to specialize in what they do/like best so the test covers both breadth and depth of learning. It would probably take a few years, but the administrator could provide some sort of general certificate of intelligence+grit that potential employers and spouses could check without having to administer the test themselves?