PerformanceArchitectureWeb
A cache is a memory of what the user just saw. When it returns the same thing quickly, it feels like the product remembers you. That emotional effect is more powerful than the technical optimization.
The key is to avoid surprises. If cached content is stale, communicate it or refresh quietly in the background. A quick refresh indicator or a subtle timestamp builds confidence without adding noise.
Caching should support the user story, not hide it. When you treat it as memory, you focus on consistency and trust instead of only speed.
