By stating that they are "well understood" I thought I was being clear that I meant the reasons everyone knows, as opposed to some secret reasons of my own?
Honestly, all you have to do is assume that I am not an idiot and that I probably meant something sensible, and then go work out what that sensible thing ought to be. Insisting that I dot every i, cross every t, and remove all possible ambiguity is perhaps OK when you're marking up a draft of my thesis, but this is an internet forum.
I do you the courtesy of assuming that you mean something sensible, and the further courtesy of trying to work out what it is. Perhaps you could extend me the same courtesy.
Also, Isaac, you could extend us all the courtesy of expanding on what you actually intend, when directly and politely asked to do so, rather than simply making more terse and inscrutable side remarks. ETA: Ya know what, do what ya want, you're going on ignore too. Sorry, but you're just not saying anything interesting whatsoever, and you're deliberately irritating. Consider my request for clarification withdrawn, since I won't be seeing it if you do get around to it.