Every time I am rejected, the first project I miss is always ARB. Although ARB airdrops have become a thing of the past, the authorities are still causing trouble, which is reassuring @ arbitrum_cn Recently, the well-known Robinhood launched @ Arbitrum, ushering in the era of on chain US stocks and promoting the integration of DeFi and traditional finance, which can be regarded as a landmark event in the industry. So the question is: Why does Robinhood prefer ARB when there are so many L1 and L2? With this question in mind, I consulted the latest official documentation and found that Arbitrarum Chains are shining brightly in the Web2 and Web3 worlds. What is Arbitrarum Chains? In fact, developers use ARB technology to launch a permissionless path for customizable private chains, which can be Arbitrarum Rollup (such as Arbitrarum One) or AnyTrust (such as Arbitrarum Nova). Simply put, developers can deploy L2 or L3 based on ARB with low threshold, which greatly improves network performance while sharing Ethereum security, and is conducive to the large-scale popularization of various applications. Public information shows that more and more projects are being deployed based on Arbitrarum Chains. In addition to Robinhood, there are also these well-known users: AnimeChain、Ape Chain、Converge、Hyptopia Hychain 、Rari Chain 、Xai…… These projects are based on ARB deployment and develop their own ecology, which is very similar to Taoist philosophy: the Tao generates one, one generates two, two generates three, and three generates all things. In the case of slow entry of incremental users, ARB officials are actually burying themselves in road construction, which not only needs to be spacious and flat, but also reduces tolls and provides convenient and comfortable service areas. Perhaps only in this way will there be more and more cars driving on Web3, people and funds will accelerate their flow, and the entire industry will truly welcome millions or tens of millions of new users.