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Today I want to dive deeper into caching and its trade-offs. While caching can significantly improve performance, it also introduces complexity, especially when dealing with consistency. One of the hardest problems in computer science is cache invalidation. There are different strategies for managing cache, such as write-through, write-back, and cache-aside. Each has its own advantages and disadvantages. For example, write-through ensures data consistency but can increase latency. On the othe