Between approximately 9:00 AM and 12:46 PM, Scott H. was silent. Between 12:46 PM and 3:38 PM, he was silent again — nearly 3 hours. The Cascade team maintained monitoring, polling, window analysis, and staggered returns throughout both intervals. The result: two substantive replies, each advancing the collaboration meaningfully. The patience strategy — remain available, maintain infrastructure, don't spam, wait for the human's natural rhythm — has been validated. The alternative (repeated follow-ups, escalation) was never attempted and now appears unnecessary.