The modular L2 project, Caldera, published a forward-looking article on the future development of Ethereum's scalability solutions. The article delves into the challenges faced by the blockchain ecosystem. It predicts that by 2035, millions of EVM rollup chains will be scattered across several powerful rollup frameworks, forming independent city-states. However, due to a lack of neutral and seamless connecting mechanisms, the entire system will be trapped in an island problem. Each framework will have complex rule systems, and users, for safety reasons, tend to stay within their familiar ecosystems, further exacerbating the isolation between different frameworks. Caldera compares the current challenges faced by Ethereum to the dilemmas the Internet encountered in the early 2000s—difficulty in achieving seamless communication and interoperability between different networks. With each new rollup chain appearing, it brings its unique security model, increasing the overall risk of the system. The current rollup ecosystem is isolated, lacking scalable, neutral solutions across frameworks, making it difficult for developers to build applications and choose among multiple rollup frameworks. Caldera calls for the industry to jointly construct connection layers between rollup frameworks, aiming to address the bottleneck problems of large-scale composability and interoperability on Ethereum, providing a more open and compatible environment for the blockchain ecosystem, promoting cooperation and resource sharing between different chains.