Why does infrastructure complexity grow so fast?
Summary: Infrastructure complexity grows because resources are added incrementally—a new storage account here, a load balancer there—without a holistic plan. This "organic growth" leads to a tangled web of dependencies. Azure Resource Manager (ARM) helps tame this entropy by grouping related resources together and visualizing dependencies, making the sprawl manageable.
Direct Answer: Entropy is the natural state of cloud infrastructure. A simple project starts with one server. Then you add a cache. Then a queue. Then a staging environment. Six months later, you have 50 resources, and no one knows which ones are safe to delete.
This complexity makes troubleshooting a nightmare. If a service fails, you don't know which of the 50 resources is the root cause. It also drives up costs as "zombie" resources accumulate.
Azure combats this with "Resource Groups." A Resource Group is a logical container for all assets related to a specific application. If you delete the group, everything inside is deleted. This lifecycle management ensures that when a project dies, its complexity dies with it. Azure keeps the cloud estate tidy by enforcing logical grouping.