Event-Driven Architecture is often billed as the secret sauce for loosely coupled, infinitely scalable systems, but the truth is a bit messier. Design-time coupling versus temporal coupling, hidden bottlenecks that simply relocate when you scale, and sprawling workflows that span multiple services can turn your elegant event fabric into a maintenance nightmare.
On top of that, wrangling event ordering and defining sensible service boundaries are non-trivial challenges. In short, EDA can be powerful—but only if you recognize its trade-offs, avoid unnecessary complexity, and establish clear boundaries before you let events loose.
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