Let 'em be puzzled

Now I kind of understand why sometimes I don't catch what the japs are talking about. One of the reason is because of the difference of our knowledge / education background. For example, today's study group, the topic about a book entitled "The World is Flat", and the word "insourcing" as one of the world flattener was discussed. An example of insourcing is the UPS company. They don't know at all about UPS, the world largest package delivery company. Because of that they don't know the nuance of the story written in the book. So may be this is what happened to me too.