I found myself laughing quite loudly, and re-reading this passage to my wife to help her share in my enjoyment. I’m not sure I succeeded, but I will share with you all nonetheless. The subject is conversation, and in the specific passage, the authors are beginning to illuminate the “presupposition pool”. Even more specifically, the idea that speakers naturally exclude or include content based on these shared concepts. …Any speaker will necessarily make certain assumptions about his listeners and will fashion what he has to say accordingly. For example, he will not unnecessarily explain such technical terms as he may use unless he is fairly sure that explanation is required;…