From Liangzhou to Byzantium

This is not a cool article about a time traveler who took out gunpowder, glass, and cement at the beginning and conquered the world, but a modern man of science and engineering who, in the abyss of survival pressure and power in ancient times, packaged knowledge into alchemy, statistics into accounting, engineering into water conservancy, organization into military systems, and metallurgy and artillery into hard power that determines the direction of the world. What he wants to change is not just a dynasty change, but a classical civilization entering an era of joint expansion of technology, institutions and world vision ahead of schedule.