Memoization is caching and a form of dynamic programming; thus caching is sometimes an important tool in dynamic programming. But the fact that caching can be

Memoization is caching and a form of dynamic programming; thus caching is sometimes an important tool in dynamic programming. But the fact that caching can be useful, even essential if your scenario demands such a clear-cut space-time tradeoff as in memoization, seems beside your point.