Notes on verification

Confirmed by Wikipedia and corroborated independently by Britannica and Today I Found Out; mainstream scientific consensus treats these as distinct phenomena with different causal mechanisms, though some informal sources conflate them. [cascade flags: aggregator_dropped_primary_exists | tier=unverified indep_score=0.375 clusters=1 claim_tier=notable] [harvest 2026-09-15: +2 source(s) on new hosts; tier unverified->silver indep=0.925 clusters=2] [kind-backfill 2026-09-15: kind=interpretive eligibility=medium]