Great article. I&#x27;ll add one: caching doesn&#x27;t address underlying performance issues, just &quot;sweeps them under the rug&quot;.<p>I&#x27;ve seen many devs jump to caching before investing time in understanding what is really causing performance problems (I was one of them for a time, of course). Modern web stacks can scream without any caching at all.<p>Years ago, a talk by Rasmus Lerdorf really opened my eyes up to this idea. [1] He takes a vanilla PHP app (Wordpress, I think) and dramatically increases its throughput by identifying and tweaking a few performance bottlenecks like slow SSL connections. One of the best lines: &quot;Real Performance is Architecture Driven&quot;<p>[1] I think it was a variation of this one: <a href="https:&#x2F;&#x2F;vimeo.com&#x2F;13768954" rel="nofollow">https:&#x2F;&#x2F;vimeo.com&#x2F;13768954</a>