In fact, the most direct reason for the popularity of the Metaverse is that technological development has expanded the boundaries of imagination. As the technological foundation of the Metaverse, VR, AR, AI, blockchain, and others have entered a period of rapid growth.

Virtual reality (VR), also known as virtual technology or virtual environment, uses computers to simulate a three-dimensional virtual world, providing users with sensory simulations such as vision, making them feel as if they are physically present. Users can observe objects in the three-dimensional space in real-time without limitations. From a technical perspective, VR systems have three basic characteristics, known as the three "I"s: immersion, interaction, and imagination. These emphasize the dominant role of humans in virtual systems. In the past, people could only observe and process results from outside computer systems, but now they can immerse themselves in environments created by these systems. With the advancement of professional VR devices and the reduction in their prices, the integration of the Metaverse and VR is only a matter of time.

To support identity and economic systems, the Metaverse relies on blockchain technology to establish credibility. The recent popularity of blockchain has also provided technical support for the realization of the Metaverse.

Of course, to ensure the diversity of the Metaverse, edge computing technology is needed to guarantee that all users have a similar and smooth experience.

Naturally, these technological advancements do not happen overnight, but the explosive growth of technology in recent years has indeed laid the foundation for the Metaverse. Additionally, due to the pandemic, people have begun to pay more attention to the construction of virtual scenarios. In reality, there have been some feasible examples. For instance, spurred by the pandemic, the famous American singer Travis Scott held a virtual concert in the game Fortnite, attracting 12.3 million players worldwide as virtual concert attendees. During the pandemic, the University of California, Berkeley, rebuilt its campus in the sandbox game Minecraft to prevent students from missing their graduation ceremony. Students gathered virtually as avatars to complete the ceremony. Moreover, the top AI academic conference ACAI held its 20th-anniversary seminar in Nintendo’s Animal Crossing, where speakers presented PPTs and gave speeches in the game.

Looking to the future, some believe that in about 100 years, the Metaverse may replace the real world and become the primary scene of human life.