I'm pretty sure the language barrier and a massive internal market do most of the heavy lifting here. Look at Yandex. The Great Firewall is a wash at best. It

I'm pretty sure the language barrier and a massive internal market do most of the heavy lifting here. Look at Yandex. The Great Firewall is a wash at best. It protects local companies from international competition but it's part of a policy that makes foreigners trust Chinese products much less and will hurt their adoption.