Explore timeless system design patterns that remain relevant across evolving technology landscapes in this 58-minute conference talk from NDC London. Discover how fundamental design principles apply consistently whether you're working with legacy monoliths, modern microservices, cloud architectures, or cutting-edge agentic AI systems. Learn practical patterns for building reliable, performant software that solves real user problems, regardless of architectural style or technological trends. Examine how core system design concepts transcend specific technologies, from traditional on-premises applications through the cloud revolution, service-oriented architecture, event-driven systems, and emerging AI-driven approaches. Gain actionable insights and proven patterns you can immediately apply to any system you're building, ensuring your software remains robust and effective as technology continues to evolve.