Language is flawed as a communication medium. I propose that Brains are pattern recognising and model the world based on experience. One of those patterns recognises that their are many similarities between the way each human experiences the world. If I draw a circle and see a circle then I assume that you see the same thing. However to extend this assumption to every experience is flawed. Not everybody has the same type of eyeball or ability to see the same way as evidenced by colour blindness. Since every body experiences the world differently, can there ever truly be an exact semantic match? The second proposal is that we come to a statistical understanding of language and in its current form exact or precise communication is not possible. The latter statement would be a discussion for a new thread.