Its connotation is to absorb the achievements of information revolution (5G/6G), Internet revolution (web3.0), artificial intelligence revolution, and VR, AR, MR, especially game engines, and show mankind the possibility of building a holographic digital world parallel to the traditional physical world; Triggered the interaction of information science, quantum science, mathematics and life science, and changed the scientific paradigm; It has promoted the breakthrough of traditional philosophy, sociology and even humanities system; It includes all digital technologies, including blockchain technology achievements; Enriched the transformation mode of digital economy, and integrated digital financial achievements such as DeFi, IPFS and NFT.