Why do AI agents forget everything?

(AI memory, part 1/5) Have you ever used an AI agent that forgets your name the second you tell them? In this series, we're going to fix that. This first video breaks down the core problem with stateless AI agents. We'll cover the three basic parts of an agent—system instructions, the model (like Gemini 2.5 Flash), and tools—and explain why they aren't enough to create a truly intelligent and personalized experience. This is the foundation for building agents that can actually remember. 🤖 This is Part 1 of our 5 part series on building AI agents with memory using the Agent Development Kit (ADK).