Speaking of Sedevacantists
Richard's perceptive comment, point two. (Here's point one.)
Although I know this will drive some of my readers crazy, as I often joke with traditionalist Roman Catholics: We Orthodox are sedevacantists, too; we just disagree on the time of the vacancy. :)
Yes, I recognize friends of mine have other ideas...and that's their right, as it is my right not to share their views. It's not a cause for ill-will or reaction. In my far-from-perfect reading of the Church, I simply do not at this time believe their concepts reflect the historical mainstream of Orthodoxy. I believe membership in the visible Church requires the three-fold unity of doctrine, faith, and communion. (And if my friends can demand that of the vagantes, they can demand it of Rome.) As such, Rome lacks a pontiff, and we ought to get about supplying the vacancy.