The article can probably be succinctly summarized as &quot;Premature optimization is the root of all evil&quot;. Most of the authors points are valid, in that caching adds more complexity.<p>That said, caching is absolutely critical to almost every piece of software ever. Even if you explicitly caching isn&#x27;t used, a wide variety of caches are likely still being depending upon including CPU caching (L1, L2, L3), OS filesystem caching, DNS caching, ARP caching, etc etc.<p>Caching certainly adds complexity but it&#x27;s also one of the best patterns for solving a wide range of performance problems. I would recommend developers spend more time learning and understanding the complexities so that they can make use of caching correctly and without applying it as a premature optimization.