Well, China is the world's largest country, so this should come as no suprise.
It's only communist ideology and control which prevent China from taking off like a rocket.
(Get rid of that, and then you'll REALLY see a galloping economy!)
Russia is the world's largest country
I remember in the late 1050s hearing that by 1970 the Soviet Union would surpass us in almost everything. Yep, that happened...