Sometimes long analogies like that of the article have trouble making obvious distinctions between design choices and The Way Things Work. For instance, this a

Sometimes long analogies like that of the article have trouble making obvious distinctions between design choices and The Way Things Work. For instance, this article's analogy makes assumptions about cache eviction policy and cache coherence that map nicely to an office setting. Other design choices might not map well. So intuition developed here might not be flexible enough to reason about caches in the real world. Not to say the analogy detracts from the article. The author includes a list of caveats. I really enjoyed the piece.