Traveling through the Zhenguan years, Li Sheng became an idle prince that no one cared about, and accidentally activated the encyclopedia system - for every puzzle he solved, he obtained a piece of future technology.
To answer the question about rice epidemics, we have the method of cross-breeding; to solve the problem of weak cavalry, we have the method of improving stirrups. He quietly leveraged the foundation of the Tang Dynasty with his steam engine and steel-making technology, which shocked and hated Li Shimin and the conservative ministers.
Until the Allied Forces of the Western Regions came to the border and smoke was everywhere, he took out the radio and mines, and used the power of dimensionality reduction to rewrite the situation of the cold weapon war.
