Queue visibility before queue complexity

In queue-heavy systems, the first operational win is usually not architectural sophistication. It is knowing which jobs are failing, stalling, retrying, saturating workers, or quietly creating user-facing lag.

That is why observability surfaces like Horizon matter so much. They create the feedback loop that tells you whether you have a capacity problem, a workload-shape problem, or a code problem.

You cannot scale what you cannot see. Start there before adding more machinery.