Drill: Empty states: 5 different empty states, each with what/why/next. No "No data." Target: each empty state teaches the user something.

Interpretation: Observing console for a fictional mountain observatory (night of Oct 3-4, 22:31 UT). The queue's empty state is a live state machine driven by real filters, with distinct copy grammars for search-miss, scope-error, intersection-empty, and facet-empty; the rail carries timeline-gap, telemetry-hole, embargo, first-run, and caught-up grammars. Cool-paper light theme, single cyan accent contracted to user intent, Inter + JetBrains Mono, every count on the page derived from one dataset.