Edward O’Connor: Hixie’s not the sort of guy to leave things underspecified, so HTML5 defines (in excruciating detail) how to convert an HTML document to Atom, even when the HTML document in question is, shall we say, less than ideal. The root of the problem is that the atom spec specifies: The content of an atom:id element MUST be created in a way that assures uniqueness ... and a willingness to