In Neal Stephenson's description, the meta-universe uses headsets and eyepieces to connect to a computer through data, and in this way enters a virtual space that is simulated by a computer and parallel to reality. You can understand the meta-universe as a dream, a dream constructed by a computer that is extremely real and very awake, and is affected by people's subjective will. In this dream, you can create a clone, all experiences and behaviors of the clone are under your command,...