With the rapid development of the Ethereum ecosystem, Rollup technology has brought about significant performance improvements as a scaling solution. However, this prosperity also comes with potential fragmentation risks. To address this challenge, Caldera has proposed a groundbreaking Metalayer concept.

Metalayer aims to be a universal language across Rollups, cleverly connecting Rollups based on two different technological frameworks: Optimistic and ZK. Through this innovative design, Rollup networks that could have been isolated from each other can now operate in synergy, sharing liquidity and validation services, thereby greatly enhancing the interoperability of the entire ecosystem.

In this blueprint of cross-chain collaboration, the ERA token plays a key role. It is not only the medium for fee payment in cross Rollup transactions within Metalayer but also a necessary credential for participating in validator node staking and protocol governance. One could say that ERA is like a "passport" and "fuel" in this cross-chain world.

Caldera's vision does not stop here. By pushing the concept of "modular Rollup" to its limits, they have also built a higher-level connection architecture. This allows the inherent security and decentralization features of Ethereum to seamlessly extend into the future multi-chain ecosystem.

The design philosophy of Metalayer showcases its unique charm: it provides a common interaction platform for various Rollups while maintaining their independence. This innovative approach not only facilitates communication between different Rollups but also paves the way for the collaborative development of the entire blockchain ecosystem.

With the advancement of the Metalayer concept, we have reason to expect a more interconnected and efficient blockchain future. In this future, different blockchain solutions can coexist harmoniously and collectively drive the entire industry forward.