I'll put this out there because I think many of us have seen enough at this point not to rule anything out:

There's a theory that Medvedev is a descendant (or clone!) of Tsar Nicholas II, to whom he bears more than a striking resemblance. These are very strong words coming from him, a man who until recently has been so mild as to make the conservative Putin look like a firebrand in comparison. He's also a Russian statesman, who play their cards very close to the vest. Are the Romanovs looking for payback a century later in a very, very deep game?

What counter-evidence do we really have, besides arguments from personal incredulity?