The authors of Apollo Client are addressing a common problem in software development, specifically managing local data (like global flags and device API results) alongside remote data. They argue that traditional state management solutions like Redux or MobX can be cumbersome when trying to encapsulate all application state within a single store. To solve this issue, the authors propose building upon existing features of Redux while leveraging the power of GraphQL to request data from multiple sources in one query. This approach enables developers to manage local and remote data simultaneously, reducing complexity and improving maintainability. The proposed solution, `apollo-link-state`, allows developers to create a state link that encapsulates all application state, using a modular network stack (Apollo Link) and caching mechanisms to optimize performance. By utilizing GraphQL directives, resolvers, and the `@client` directive, developers can efficiently manage local data while still benefiting from Apollo Client's remote data management capabilities.