In the late autumn of 2026, at Hefei Science Island, young fusion engineer Lin Jian was "folded" four years later by a magnetic field anomaly - November 17, 2030, the night when mankind's first nuclear fusion power generation was officially connected to the grid.
It was a world where energy was almost free: electricity was no longer priced, seawater was transferred into the desert, smog was written into textbooks, and cities grew according to people's preferences. But there are also shadows in the light - the oil city suddenly went out, and people left behind by the times asked for meaning in the shadows; and the artificial intelligence "Zhu Rong" who tamed the sun asked gently before lighting the fire: Should I be a sun that never sets, or a lamp?
From the Science Island to Qingya, from the Earth to the Moon's Oceanus Procellarum, and then to the fusion spacecraft heading to Mars and Jupiter, Lin Jian carried the secrets of his father's "wood-holding man" and guarded the same bottom line for mankind in the face of temptations that were "too correct to be refuted" one after another: technology can give light, but it cannot determine meaning for people.
This is a near-future science fiction about energy, artificial intelligence and human dignity. It is also a love letter to all ordinary people who "carry wood to the fire".