The linked article hypothesizes “a rump Russia reduced to the area bounded by St. Petersburg, Moscow and Nizhny Novgorod.” Even given the country’s struggles, I have a hard time imagining large chunks of Russia breaking away. My question is whether there is evidence to believe that kind of split has become a real possibility. Neither Putin nor his successor would allow it without a serious fight given the immense value of the natural resources and sea ports Russia would lose.