Dear Thomas, As I told you in my previous private mail you are entitled to have your own view, and to make it public. You don't have to submit me anything. I shall of course respect your opinion, even if I disagree with it. (by the way I told exactly the same thing to George Janelidze but, not only I could not convince him, but I had the impression we were living on different planets!). Of course, if I do disagree, I shall tell you why I do, and try to convince you by purely mathematical arguments, not by the fact that I consider myself as some kind of owner of fibered categories, in spite of the important developments of this theory which I introduced. And I promise to study carefully your own arguments,c and to change my views about some questions if you convince me, mathematically. This is by no means an an answer to your mail. I am preparing a more ambitious mail, where I shall expose my views, not only about fibrations but on other important issues, some of which have not, or very little, been touched by the numerous mails about fibrations exchanged during the last weeks. Because of the comprehensive scope of this future mail, I beg you to be patient, i shall need some time. This future mail shall, in a sense, be addressed to me. I'm getting old, and I need to think a little about what I have done, and what I should have done. (Not only in mathematics of course, but the other domains are between me and me). Best to all, Jean [For admin and other information see: http://www.mta.ca/~cat-dist/ ]