Lin Fan is a "high-dimensional engineer" from the 32nd century whose consciousness has been deeply integrated with the super intelligent brain. Due to an accident in a quantum experiment across time and space, fragments of his core consciousness were thrown into a wild primitive continent. He has no golden finger system, no heaven-defying skills, and even his body has returned to his ignorant childhood. However, what he possesses is a "knowledge system" that is more powerful than any system - from the Big Bang to quantum entanglement, from atomic structure to interstellar navigation, the underlying logic of all science and engineering is engraved deep in his consciousness.
He was born into a primitive tribe that was on the verge of extinction. The people of the tribe eat hair and drink blood. They are full of fear of nature and cannot even save fire. Facing hunger, wild beasts and harsh environment, Lin Fan had no choice but to start from the most basic "survival". He used high-dimensional knowledge of physics, chemistry, and biology in the most primitive and intuitive way to practice it bit by bit among primitive tribes: from the simplest friction to make fire, to pottery firing, to the construction of tribal irrigation systems and simple smelting furnaces. He is not teaching, but "guiding" - guiding the transition of human civilization from 0 to 1. He led the tribe from cave dwelling to settlement, from gathering and hunting to farming, fishing and animal husbandry, and from primitive totem worship to the preliminary understanding of the laws of nature. Every technological breakthrough was accompanied by a leap in the tribe's productivity and the fanatical worship of the tribesmen, and Lin Fan gradually gathered the "fire of civilization" that could change the world.