I am unconvinced by "The Europeans[..]did not adapt and subsequently lost the option of smooth land transportation for almost one thousand years." By the subsequent text, "Roman road infrastructure remained relatively useful until about the 11th century AD" and they started building them again in the late middle age. The middle ages by definition in the 15th century so the 11th is already near the late middle age. Mo…
The article claims that this was only the case on the eastern plains, and that large parts of the network of paths in China actually were paved.