And as well as these points, ambiguity. A formal specification of communication can avoid ambiguity by being absolute and precise regardless of who is speaking and who is interpreting. Natural languages are riddled wth inconsistencies, colloquialisms, and imprecisions that can lead to misinterpretations by even the most fluent of speakers simply by nature of natural languages being human language - different people learn these languages differently and ascribe different meanings or interpretations to different wordings, which are inconsistent because of the cultural backgrounds of those involved and the lack of a strict formal specification.
