Symbols sequenced to a syntax can represent a body of knowledge.
But they cannot represeent a sensation. Thus, we do not have the laguange to express sensations, perform opertions on sensation etc.. The fact that we have not been able to represent a sensation in a symblic language establisheshes the fact that we have not uncovered the mechanism of manifesting sensations. Had chat with Loen at Austin Osis tooday. He seems to imagine that sensations are logical problems and witll be algorithmically solved one day. But like others, he is not able to show a prototype of the mechnism.