The aggregation layer serves as a middle ground between users and the underlying blockchain infrastructure. It collects and organizes transactions from various sources, streamlining them before they are submitted for processing. This can improve efficiency and reduce congestion on the main chain.By bundling transactions, the aggregation layer can lower fees and increase transaction speeds. It can also facilitate the integration of different blockchain networks, allowing for smoother cross-chain interactions. Additionally, this layer often includes features such as data validation, where it checks the legitimacy of transactions before they are finalized. This adds a level of security and reduces the risk of fraudulent activities.In essence, the aggregation layer enhances user experience by optimizing transaction flow and providing greater interoperability while maintaining the benefits of decentralization and security inherent in blockchain technology.