Some years ago I read a wonderful - and very opinionated - book entitled "The Loom of Language", which opined that had Wilkins' "Real Character" (briefly described in the article) become the norm for scienfific discourse then scientific progress would have ground to a halt, because Wilkins' scheme systematised human knowledge into a fixed hierarchy of concepts, but made no allowance for new concepts. I wonder if Ithkuil might suffer from the same essential weakness (which is not to detract from the awe in which one must hold such an exquisitly intricate creation)