2021 was the watershed year when Web3 transitioned from niche to mainstream. That year, digital artist Beeple's work "Everydays" sold for a staggering $69.3 million, immediately thrusting NFTs into the global spotlight. During the same period, the on-chain game Axie Infinity surpassed one million active users daily, and the "play-to-earn" model showed new possibilities for crypto gaming. Major tech companies also began to bet on the future— a well-known tech giant announced a strategic shift, betting on the metaverse concept. Data further illustrates the point: the NFT market size skyrocketed from $200 million to $25 billion in that year, an astonishing growth rate. More importantly, the reach of Web3 has extended from pure finance into culture, entertainment, gaming, and other areas, transforming the entire ecosystem from a trader’s game into something that begins to influence the daily lives of ordinary users. This year also marked the starting point for many people to understand the crypto market and blockchain applications.