If it is, what does that even mean?
Again the petroyuan. There isn't a day goes by when someone isn't shouting about the dollar's imminent demise and most often they say it has to do with China and oil. The world's current reserve currency system may be reaching the end of its useful life, but I assure you it has absolutely nothing to do with either of those. In fact, the only reason the thing has stuck around is because of what a real reserve currency is and what is has to do.