In the science fiction novel "Avalanche" written by Neil Stephenson in 1992, Metaverse is a 3D virtual reality world in which people can escape the dystopian reality: a huge online game in which people's avatars wander around. Communicate with each other, visit online services, go to virtual bars, or engage in virtual sword fights. Nowadays, technology companies use this word to express different meanings, but in the most basic sense, it refers to a virtual space, where you can collaborate an...