Yeah, you are right, but some sort of manageable grouping is needed to make the point since this is a conversation and not an academic journal so I don't feel i

Yeah, you are right, but some sort of manageable grouping is needed to make the point since this is a conversation and not an academic journal so I don't feel it would be appropriate or needed to completely break down every possible combination. "Smart" means kids that would be in gifted programs which don't exist anymore. "Not smart" is kids who go on to be plumbers. This is not sufficient itself since there are smart people that go into plumbing, and there are dumb people that get degrees. But it's the general idea that the current system of training everyone in identical classes using a curriculum created by bureaucrats, politicians and businessmen selling textbooks in order to pass a standardized multiple choice test is not an ideal one. I hope that is clear.