I wrote this over several days to add to a discussion that has surfaced and resurfaced, but now I can’t find where it is so I am doing it this way. (Two weeks ago, I didn’t know blog from fog. Now I am following three sites so please bear with me.) It is entirely possible that everything here has been said. If so, please simply count it as a recommendation for those or regard it as a hypothetical possibility. I find that I cannot avoid saying it.