Haggai Philip Zagury gave a presentation about planning data pipelines at scale. He discussed challenges like unpredictable scale, increasing complexity as services grow, and high network traffic from logs. His proposed solutions included using managed cloud services to reduce complexity, optimizing data storage for read/write performance, using multi-tenancy to track costs, and leveraging container orchestration tools like Kubernetes to simplify management of compute resources. He also advocated for measuring performance and costs to continuously improve efficiency.