Mem is a note-taking app that uses AI to automatically organize your notes without manual folders or tags. It finds connections between ideas, surfaces relevant notes when you're working on related topics, and answers questions about your knowledge base in natural language. The chat interface lets you ask questions like 'What did I decide about the brand strategy last month?' and Mem searches your notes, pulls relevant context, and synthesizes an answer. The AI also drafts new notes from brief prompts using your existing knowledge as context. For knowledge workers who accumulate notes faster than they can organize them, Mem's self-organizing approach reduces the overhead of maintaining a personal knowledge base without enforcing a rigid organizational system.