Residuals of Intelligent Design in contemporary theories about language nature and origins

Some contemporary theories about the origin and the nature of language resort to concepts with no bearing on darwinian evolutionary hypotesis or evo-devo perspective which both are based on the reconstruction of species morphological structure transformation. These theories, which evoke saltism, cultural evolution, structure/function coevolution as esplicative principles for human evolution, in our opinion, result compatible in some points with the most recent Intelligent Disign accounts. Attempting to substantiate itself as a scientific theory, the contemporary ID is ready to give up (or suspend) creationist explanation just to impeding Darwin’s foundamental idea according to which it’s possibile to explain evolution only through a graudal material modification of structures. For comprehending a complex phenomenon as human language – according to ID – it’s necessary appealling to a second substance, whatever it is. This idea seems to be at the bottom of all those theories which have rejected monistic structural explanation (modification of phisiological structures) for embracing functional, psychological or cultural accounts. We consider these kinds of explanation real unresolved residuals of ID, residuals nested in the heart of the most accredited scientific theories.