This! I am frustrated at how often devs will not accept that simple things become incredibly complicated at scale. That favorite coding technique? That container you wrote? Those tests you added? All good, but until you've tested them at scale, don't assert that everyone should use them. This dynamic is true in the other direction too: that techniques often taken for granted simply are not feasible in highly resource-constrained environments. With rare exception, the best we can say with accuracy is that "I find X works well enough in the typical situations I code for."