Educational explainer, EXP-01 — not tied to a live news event; sourcing floor is narrow by design (see CASE_FILE.md's honesty-check paragraph)
On what's here: this video makes exactly one class of real-world factual
claim — two U.S. state population totals — used purely to show the scale of the "divide by
population" idea it teaches. Every other number on screen (candy counts, kid counts) is an
invented, explicitly-labeled teaching example, not a claim requiring a citation. That keeps
this checklist short on purpose, not because sourcing was skipped.
DIRECT = confirmed working link, verified against the source page directly.
Primary source — U.S. Census Bureau population estimates
Arithmetic (no external source required — definitionally correct)