Celestia’s data availability layer relies on light nodes using Data Availability Sampling (DAS) to verify block data efficiently. However, DAS faces bottlenecks: 1) Scalability depends on sufficient light nodes; larger blocks require more nodes, risking network strain if participation is low. 2) Light nodes assume connection to an honest full node, vulnerable to eclipse attacks that disrupt fraud proof verification. 3) Erasure coding errors need full block data for fraud proofs, but limited full node access can hinder reconstruction. 4) Bandwidth costs grow with block size, potentially limiting light node efficiency. These issues challenge Celestia’s ability to scale securely without compromising decentralization, requiring robust node incentives and network optimizations.