Queues vs Streams vs Event Bus: The Mental Model That Makes System Design Click (opens in new tab)

I struggled with system design and event-driven architecture for years. Then I learned that queues, streams, and event buses are three completely different things, even though they look identical on a whiteboard. You draw the same boxes every time: Producers a broker And something subscribing on the other end. That picture is what kept tripping me up, because it hides the only part that actually matters: what's going on inside the broker, and the way each one pushes your system to scale in a ...