I think there's room in secondary education, at least for highly motivated students, to drill deeply into one particular domain. They can and do. It's called

I think there's room in secondary education, at least for highly motivated students, to drill deeply into one particular domain. They can and do. It's called independent study, though I don't have any idea how many highschools offer the option. Unless you mean suspending gen-ed requirements to do this. In which case, it sounds like a recipe for graduating students with holes in their education for what benefit? So they can have a chance at being a 1-in-X success story at 18 instead of 22?