Recently, Tiger Research released an in-depth research report on the cross chain bridge @ Orbiter-Finance, listing its ultra-high market share data in mainstream layer2 asset cross chain, and mentioning that Orbiter is undergoing a strategic transformation from cross chain bridge to Vizing layer2 chain. The question is, since the "business model" of cross chain bridges is good, why still have ambitious plans to develop layer 2 chains? Come on, let me try to interpret: 1) Since the deployment of the rollup centric layer 2 expansion strategy in Ethereum, the "cross chain bridge" has become a crucial component service for connecting layer 2 message communication and asset interoperability. However, due to the fact that the original cross chain path defined by Ethereum is basically, L2——>L1——>L2， In addition to the 7-day challenge period window of OP Rollup, if A layer 2 chain wants to transfer an asset to B layer 2 chain, in addition to the two larger cross chain gas fees between the main network and layer 2 that need to be borne, there is also a longer time cost of capital locking. In this way, most of the assets between layer 2 cross chains, either relying on centralized CEX coin withdrawal solutions or third-party cross chain bridge protocols such as Orbiter, Hop Protocol, Wormhole, etc. This is precisely why the report states that Orbiter Finance has been able to maintain a leading position in this round of layer2 expansion. According to data disclosure, its market share is roughly 40%, and it has created a unique Maker mechanism, with one company almost monopolizing 70% of the profits in the cross chain bridge market. These data can indirectly confirm Orbiter's success in the cross chain bridge track. 2) But after the upgrade in Cancun, the layer2 market was once flourishing, with two major camps, OP Rollup and ZK Rollup, continuously expanding vertically and advancing their own technology stacks and ecosystems. For example, OP Stack developed dozens of new layer2s, including Base, as part of its Superchain strategy. However, both OP Stack and ZK Stack are burying themselves in developing their respective closed ecosystems. Although their wings are gradually growing, they are increasingly showing a trend of feudal separatism, which leads to further dispersion of layer 2 liquidity and a constant disconnect in user experience. In this case@ Vitalik Buterin has repeatedly called for Layer 2 to improve interoperability, and has launched the Helios lightweight client to accelerate trustless and interoperable performance between Layer 2. And there are many others including @ ParticleNtwrk@ Chain abstractions such as ProjectZKM and ZK technology service providers also help unify the liquidity of the Ethereum Layer2 ecosystem through the intervention of third-party interactive operation layers. This means that Endgame of the Ethereum layer2 ecosystem will definitely build a consistent interactive operation layer, which means that if Orbiter and other cross chain bridges are satisfied with the current "business model", they may ultimately face the risk of being eliminated by the market. 3) Therefore, it is not difficult to understand why Orbiter has turned from passive to active and launched the Vizing layer2 extension solution to achieve secure and low-cost seamless asset interaction between multiple chains of layer2. As mentioned earlier, other layer 2 is a strategy of feudal separatism and development, and in front of Vizing, there is probably only one path to take, which is the "Lianheng" strategy. For this purpose, Vizing Chain has mainly built three core features: 1 Vizing Account Abstraction (VAA)： Enable users to manage multiple Layer2 networks with a single account, greatly simplifying the user experience, similar to the account unified abstraction service provided by Chain Abstraction Service; 2 Vizing Environment Layer (VEL)： Providing developers with a unified cross chain development environment, lowering the threshold for ecological construction, is equivalent to a unified cross chain communication standard. First, unify the standards, and then promote ecological development; 3. Cross chain information communication between Rollup: reduce dependence on Ethereum L1, adapt to different layer2 Rollup chains, use a unified standardized interface to communicate information with them, and provide conditions for efficient and decentralized asset exchange between layer2; above. Overall, in the context of the inevitable trend towards unified cross chain interoperability in Layer 2, Orbiter has chosen to actively "revolutionize" itself and promote a more ambitious and imaginative Layer 2 interoperable shared layer strategy. Moreover, with the finalization of subsequent roadmaps such as ZK SNARKs in the Ethereum ecosystem, including the expected Beam Chain network upgrade plan, all point to a unified layer 2 interoperability ecosystem. Prior to this, who can truly contribute value to the Omini full chain interoperability of layer 2 will directly affect its ecological position in the Ethereum ecosystem in the future.