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In software architecture you have to recognize when you're adding a rocket stage

In software architecture you have to recognize when you're adding a rocket stage. In rockets and aeroplanes it's a simple truth that weight adds more weight. To carry more you need bigger engines, a bigger fuel thank, more fuel. More weight becomes even more weight. For rockets to make it out of the atmosphere they use multiple stages. Each stage carries the rocket to a certain height, once the fuel is used up the stage is ejected so the next stage can push forward a lighter rocket. So adding a stage will get you further, but at the cost of much more machinery, engineers, and complexity. You now have a much heavier rocket to launch. Switching to kubernetes, kafka, microservices, a single page app, ... is adding a rocket stage. Maybe it's what you need to get where you want to go, but be clear about the extra weight, operational cost, engineering overheard, mental overhead.

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