A poor student with a memory of modern economics and basic engineering used the information gap to climb the social ladder in ancient times without any system or external help. He did not cheat, did not cultivate immortality, and did not make glass gunpowder. Instead, he used his simpler "arbitrage thinking" and "project management" abilities to start from farming and collecting rents. He gradually leveraged the economic lifeline of the entire empire by forming caravans, improving farm tools, building water conservancy projects, and participating in imperial examinations. Finally, as the "Common Prime Minister", he shook the foundation of a thousand-year-old family.
