hey thanks :-) saw the clip. interesting. but hear say. the largest and oldest jungles of marijuana grow in a number of places in the world. not to mention that pakistan and china are neighbours of kazakhstan with very little physical barriers.. you forgot about india. the himalayas are a proven barrier for all life. especially near the border. starting from kashmir bordering pakistan etc. till the easterm tip of arunachal pradesh bordering china. marijuana growing past this great mountain range would have existed from before. marijuana grows all the way till the peninsular tip of india near sri lanka. i feel maybe the green parts of the world all had natural weeds growing. marijuana apart. since there are proven hand few strains native to each continent.
Also, it is known for years now, that the oldest and most ancient recorded civilizations are the mohenjodaro and harappa civilizations in peninsular and northern india, which existed thousands of years before the first people to document the use of marijuana, the emperors of ancient china. They were advanced civilizations that engaged in trade with newer and far civilizations such as mesopotamia and africa. I am sure marijuana was as widely known about in those days. heavy destruction and lost remains almost prevented people of this century to ever even know about these ancient civilizations.
however it would be interesting to know if it did originate in a place located as high up such as chu valley, since it is definitely possible...to spread with wind etc would be explainable..from the highlands to the low lands..although it would be hard to explain how it crossed the great himalayas, and also how to spread north towards russia etc.
would love to see a more comprehensive documentary on the place, but right now i hear that chu valley is not as active as before. true??
also, the expert in the clip had very little fact to back up his theory. interesting though. chu valley is very beautiful. a litle barren. but pristine and beautiful.
all it takes is one seed to start a jungle.