To me, it comes down to whether or not you think the sum total of a human being is language. If your life consists almost entirely of communication based activi

To me, it comes down to whether or not you think the sum total of a human being is language. If your life consists almost entirely of communication based activities then it's easy to see why one would think that is the case but if you spend any appreciable amount of time doing work that deals with physical objects and their interactions with the environment you find that language is only one tool in the box and isn't capable of replacing the others. That's not even bothering with the metaphysics of consciousness or subjective experience.