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3.1 Metaverse

The metaverse is not a new concept, and it is more like the rebirth of a classical concept. In 1992, Neil Stephenson, a famous American science fiction master, described the metaverse in his novel Avalanche: "Put on headphones and eyeglasses, find the connection terminal, and you can enter the
Virtual space simulated by computer and parallel to the real world in the way of virtual separation." In March 2021, Roblox, the first stock of the metaverse concept, was officially listed on the New York Stock Exchange. In May, Facebook announced it would transform into a metaverse company within five years; In August, it spent a lot of money to acquire the VR startup, Pico... This year, metaverse has undoubtedly become one of the hottest concepts in science and technology.
In short, the metaverse is a virtual world that is both mapped and independent of the real world based on traditional cyberspace and with the improvement of the maturity of a variety of digital technologies.