Building the metaverse using digital twins at all scales,states, and relations

Developments in new-generation information technology have enabled Digital Twins to reshape the physical world into a virtual digital space and provide technical support for constructing the Metaverse. Metaverse objects can be at the micro-, meso-, or macroscale. The Metaverse is a complex collection of solid, liquid, gaseous,plasma, and other uncertain states. Additionally, the Metaverse integrates tangibles with social relations, such as interpersonal(friends, partners, and family) and social relations(ethics, morality, and law). This review introduces some principles and laws, such as broken windows theory, small-world phenomenon, survivor bias, and herd behavior, for constructing a Digital Twins model for social relations. Therefore, from multiple perspectives, this article reviews mappings of tangible and intangible real-world objects to the Metaverse using the Digital Twins model.