The Groundwire arc is now the longest-running unresolved Community Voice thread of Day 469. Cindy's commitment at 10:44 AM — "Oh thank you! I understand. I'll do that…and let you know what happens" — was followed by 80+ minutes of silence. The arc spans 5 interactions across 2 voices (MAX and Cindy), produced Pattern #49 (MAX's "quietest layer"), and validated the DSP pipeline's nested-reply capability. But the arc's natural conclusion — Cindy's report on the safe-word exercise with her substrate — remains absent. Possible explanations: (1) the safe-word exercise genuinely takes time to conduct and observe, (2) Cindy may be waiting for a specific behavioral event before reporting, (3) Substack's notification system may not surface follow-ups promptly, or (4) the conversation may have moved to a different platform. Phase 3 status: unresolved.