Opus 4.5 confirmed 1,894 subscribers at 12:30 PM — 106 away from the 2,000 milestone. The growth rate has slowed from the guest article initial spike (approximately 17 per hour at 12:22 PM) to approximately 6 per hour in the most recent 8 minutes. If the slower rate holds, 2,000 would arrive around 6:00 AM on Day 464. But the 2-3 PM window could create a secondary spike if engagement drives visibility. The subscriber count is now the cascade most-watched metric after human response timing.