Celestia (TIA) stands out as the pioneering modular blockchain network, empowering individuals to effortlessly establish their own blockchain with minimal complexity. Its scalability is achieved through a fundamental reimagining of blockchain architecture, where execution and consensus are decoupled via a groundbreaking primitive known as data availability sampling. By removing constraints on execution and settlement, Celestia grants developers the freedom to define their own environments for execution and settlement, thereby unlocking unprecedented possibilities for innovation. In contrast to traditional monolithic blockchains, Celestia represents a departure from the norm. Monolithic blockchains encounter scalability challenges as they handle all core functions, including transaction processing, transaction verification, and achieving consensus among network nodes on transaction validity and ordering. Modular blockchains introduce the concept of separating consensus from transaction execution, leading to enhanced scalability without compromising security or decentralization. The modular nature of Celestia opens up a realm of new opportunities. Experimentation becomes significantly more accessible, as both application-specific and general-purpose blockchains can swiftly deploy on Celestia, inheriting security from its validator set. Modular blockchains offer sovereignty over application rules, allowing developers to modify the tech stack without external permission, thereby enabling greater control and flexibility.