Systems have a tendency to get more disordered. Architecturally, it's easy to always take shortcuts such that your application code becomes one big mess of tightly coupled objects and duplicated code. It starts innocent enough -you have only a few initial components, and each one has a dependency on the others. So that's still only a few dependencies.
But then, a few emergencies later (and what isn't an emergency?), your code has ballooned, and the dependencies have exponentially exploded into a mess. The project has accrued so much technical debt that the schedule is hopeless, and it's no longer fun. Every object is intertwined with every other object:
A much more sustainable model is to demand cleaner code at each step of the way, and end up with something maintainable, which the number of dependencies increases linearly with the number of new components. This lets you add, remove, and modify the code much more easily:
I see this as one of the basic issues of architecture: keeping the ever-growing code base in a maintainable state. In application development, this often boils down to conscious decisions where everyone "knows" the right way, but instead write sloppy code for
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