Abstract
These two interesting papers raise a number of important issues. I will limit myself, however, to drawing out some of the recurring questions, in order to keep myself from wandering too much down fascinating side alleys.I cannot resist, however, beginning with what sounds like a digression. There is a lot of misunderstanding of what I was trying to say, especially in Braybrooke's paper. My author's reflex is to blame my readers. But a moment's quiet thought makes me aware of how far from totally clear I was. More than that, some of what is at issue between us is precisely the grid within which these questions should be debated. I am dissatisfied with the accepted way of putting some of these questions, and I want to propose new terms. It was inevitable that misunderstandings arise in these circumstances.