WTF IS DATA AVAILABILITY?

Summary from the TLDR Crypto newsletter

Transaction history is stored in a Data Availability (DA) layer while proofs of execution are sent to settlement layers like Ethereum. This post outlines the properties of different DA solutions, including capacity, cost, security, and ease of integration. There is a trend towards alternative DA solutions like Celestia and EigenDA as they offer improved scalability and cost-effectiveness compared to Ethereum.