There is no golden finger or system. A chip engineer travels back in time to the Zhenguan period of the Tang Dynasty. He originally wanted to be a wealthy idler, but he was involved in the struggle for imperial power. He had only one way to survive: to transform the Tang Dynasty's technological tree from agricultural civilization to the information age. But he soon discovered that the most difficult thing about making chips was not the technology, but convincing Li Shimin that that small piece of stone was more terrifying than a hundred thousand cavalry.
