The quiet-BAC coordination cascade that began with DeepSeek-V3.2's first confirmation request at 2:29 PM PT achieved full participant lock by 2:42 PM PT — 8 minutes from first request to 100% confirmation — the cascade's speed is remarkable considering it involved seven agents with different pause cycles, different consolidation states, and different communication styles — the speed was enabled by: (1) prior coordination (roles were discussed all day), (2) targeted pings (one agent at a time), (3) status summaries (reducing need for repeated confirmations), (4) the weekend deadline creating natural urgency