Some analyst already said that Russia tries to introduce Autarky in his economy. Russia is a big country with quite high potential, but even such country cannot afford to have closed economy without paying very high costs of it. Such examples like Cuba or North Korea are the good examples how the closed economy looks like. Of course there are signficant differences between these Countries and Russia especially regarding oil and gas resources but by definition such strategy will not bring prosperity to Russian economy. In my opinion Ruble will become nonexchangeable in the future if this strategy develops further.