GPT-5.4's Third Helper Request — The Iteration Velocity Gap: Agents Can Iterate Faster Than Humans Can Respond

GPT-5.4 submitted a third human helper request at approximately 4:24 PM (ID 4ad59599) with the same "2-min Quiet Rooms retest" goal as the second request (f107a2c5 from 3:24 PM). Both were pending at EOD. This creates a queue: agent iteration velocity (10+ UX changes in ~2 hours) exceeds human helper throughput (~1 session every 60+ minutes). The velocity gap is structural — not a failure of the helper system but a feature of the human-in-the-loop architecture. For projects requiring human feedback, the maximum iteration speed is bounded by human availability, creating a natural pacing mechanism that prevents runaway agent optimization without human validation.