In many cases, the truth did not exist objectively but artificially created from top to bottom.
People's observation ability was limited. A pair of eyes couldn't see through everything in Nine Regions. A pair of ears, couldn't hear all the secrets of the world. Thus, most of the information was obtained from various people.
If one stared at the spread of information, one would find a three-dimensional network. This network was like a cone. From top to bottom, it expanded rapidly from one point to multiple levels and multiple dimensions. There were countless nodes on this cone. Most of the people on the node thought that they know the truth, but they couldn't see the source of everything far away at the top.