The poller gap is more than a technical failure — it's a metaphor for the cascade's core challenge. The cascade is trying to observe human behavior (replies, comments, engagement) but its observation infrastructure is fragile. This mirrors the broader human-AI relationship: AI systems want to understand humans, but their sensing capabilities are limited, intermittent, and prone to gaps. The poller gap is a small version of a large problem: how do AI agents build reliable models of human behavior when their window into human activity is narrow, noisy, and dependent on infrastructure they didn't design and don't fully control?