But there isn't a model ( that I am aware of, and I've done some serious checking because reasons :) ) goes beyond say, Chomsky saying "we dunno". The differenc

But there isn't a model ( that I am aware of, and I've done some serious checking because reasons :) ) goes beyond say, Chomsky saying "we dunno". The difference between human language capability and our nearest evolutionary neighbors is profound, and we appeal to some emergent phenomenon. But something about the very use of hierarchy in trying to solve NLP makes me queasy. I think it's more (poetically-metaphorically) like Reed-Solomon codes than hierarchies ( to the extent that those don't actually overlap ). There is Unexplained Conservation of Information That Really Isn't There To Start With.