I think GP's point was: Devaluating Ruble could cripple Russian economy only if they imported a lot, which they don't. They are self-sufficient, they have all t

I think GP's point was: Devaluating Ruble could cripple Russian economy only if they imported a lot, which they don't. They are self-sufficient, they have all the natural resources on their territory, and they have manufacturing capabilities to produce everything they need, they do not need any trade with the rest of the world. Also, Russian people are used to being poor, so it's not like they will rebel because of getting even poorer.