> I haven't seen it proven that humans are absolutely incapable of learning certain languages. I cited Moro who showed it in a series of experiments. > they a

> I haven't seen it proven that humans are absolutely incapable of learning certain languages. I cited Moro who showed it in a series of experiments. > they are useful many things The fact that they are much more general than humans makes them not restrictive enough to be models of the human language faculty.