I don&#x27;t think population density is really the right metric:<p><a href="http:&#x2F;&#x2F;popdensitymap.ucoz.ru&#x2F;76.Population_density-administrative_boundaries-ma.png" rel="nofollow">http:&#x2F;&#x2F;popdensitymap.ucoz.ru&#x2F;76.Population_density-administr...</a><p><a href="http:&#x2F;&#x2F;media-2.web.britannica.com&#x2F;eb-media&#x2F;89&#x2F;71789-004-88879E35.jpg" rel="nofollow">http:&#x2F;&#x2F;media-2.web.britannica.com&#x2F;eb-media&#x2F;89&#x2F;71789-004-8887...</a><p>Russia is almost a third as dense as Sweden. To some extent it really is just the huge distances that makes the problem hard.