I admit first of all that I did not read every single post in this thread and that I am therefore one of type of persons that caused this thread to come into being. But I suspect that the answer is really quite simple.I have found that when you are in your late teens and early 20's you know everything.When you get to be about 30 you suddenly realize that you don't know everything anymore.When you hit 40 you realize how little you actually do know.By the time you are 50 you are really reduced to asking a lot of questions.I believe that what is going on here is that some of the people who are still young enough to know everything are having trouble being patient with the others that have varying degrees of diminished capacity.