It has indeed been completely lost.
Completely lost means that all samples and processes have been lost.
There are three reasons:
1. First of all, Mo Dao takes a long time to forge (folding forging method) and consumes a lot of iron (the amount of iron can be used to forge 2 or 3 knives) Ordinary knives, more than a dozen gun heads), so the number of Mo knives is not large. In order to ensure sufficient supply to the army, the Tang government adopted national control over the Mo knives. Similar to the national patent of salt and iron, private possession by the private sector is not allowed. of. (In the Song Dynasty, state weapons such as divine arm bows were also under military control, and those who were embarrassed were punished)
Even so, the Tang army only concentrated rations on elite infantry, and often only the 2 or 3 rows of powerful warriors in the front row could possess extremely powerful weapons. Big Mo Dao.
2. Since Mo Dao is not allowed to be buried with the Mo Dao, because burial means the permanent loss of a Mo Dao, therefore, the Tang Dynasty allowed all kinds of gorgeous relying knives to be buried with the Mo Dao, but did not allow the Mo Dao to be buried with the Mo Dao. This is obviously very difficult to dig out physical objects for our archaeological method, which mainly relies on excavation of ancient tombs.
3. The Song Dynasty did not inherit the Modao, causing the Modao to be completely lost. The Song Dynasty not only did not inherit the Mo Dao, but also did not continue to use the powerful Hengdao. The heavy cavalry weapon, the Hu, also withdrew from the stage of history in the Song Dynasty. The reason is that the Song Dynasty basically used infantry to fight against cavalry, and used large forces and Along the route of assembling cheap and effective weapons, China's cold weapons began a new round of development. A large number of new spears, long knives, axes, and divine arm crossbows were born and armed the Song army. Modao became a luxury in history.