Walrus is an interesting project that positions itself in the niche of modular data availability. In simple terms, it aims to become a high-performance data layer for the Web3 ecosystem — which may not sound particularly special, but its underlying technical approach is indeed different.

What is the core innovation? It combines data availability sampling (DAS) techniques with decentralized storage. The benefits of this approach are obvious: it ensures data is truly accessible while significantly reducing on-chain costs. For rollup solutions that require scalability, this is akin to finding an efficient data warehouse.

The blockchain space has long been battling the old problem of "data bloat." Chains are becoming increasingly bloated, costs are rising, and user experience is suffering. Walrus’s approach is to focus on building solid infrastructure — providing reliable and affordable data storage and verification services, indirectly enhancing the scalability and security of the entire ecosystem. In the modular blockchain track, this specialized positioning still holds promise.