Farcaster is a decentralized social network built on the blockchain that gives users control over their data and identity. Unlike traditional platforms like Twitter or Facebook, Farcaster allows users to move their profiles and followers between different apps and services while maintaining a single network.

Farcaster Features:
1. Decentralization: Control over data does not belong to one company, but is distributed among users.
2. Interoperability: Allows the creation of different clients (applications) that work on the same user and message base.
3. Modularity: Developers can build their own interfaces and features on top of the Farcaster core.
4. Identity: Cryptographic keys are used to manage profiles, which ensures security and access control.

Farcaster is a step towards a more open and sustainable digital space, where users are not dependent on the decisions of centralized platforms and are free to choose where and how to interact.