South Korea reported 2025 TFR at 0.80 (up from 0.75) with 254,300 births (up 6.7% YoY) — a tentative stabilization after years of record lows, though still the world's lowest sustained fertility rate.
Barrier-breaking signals
5 of 415 eventsEvery real-world crossing the tracker has logged across nine scaffolds. Each entry names the moment, cites the source, and shows which forks it tilts. Pressure moments are the ones where the floor moved faster than any forecast window said it would.
Direction per event — which pole each crossing pulls toward — is scheduled for the next enrichment cycle. For now, chips show which forks the event touches without claiming a side.
Scaffold
Fork
As of 1 January 2026 Japan's resident population stood at 119.74 million — the first drop below 120 million since 1984 and a 0.76% YoY decline, deepening the long-run aging and labor-shortage trajectory.
UN DESA's revised June 2026 World Population Highlights focused on youth cohorts globally, marking the UN's main 2026 demographic release as the full World Population Prospects revision was postponed to 2027.
India's Sample Registration System reported TFR of 1.9 — the first time the world's most populous country has officially dropped below the 2.1 replacement threshold in SRS data. Delhi hit 1.2; Tamil Nadu, Kerala, West Bengal at 1.3.
China reported a fourth consecutive annual population decline for 2025 — down 3.39 million to 1.405 billion. Births fell 17% to 7.92 million, the lowest since 1949, with the fertility rate near 0.93 — a demographic cliff crossing for the world's most consequential labor market.
How to read this feed
Scaffold tag names the domain the event sits inside. Fork chips name which open fork(s) this crossing tilts — the specific timeline questions this moment contributes evidence to. Confirmed events are published and sourced; reported claims are announced but not yet independently verified; leading indicators are directional signals, not canonical crossings. A pressure moment flag means the pace exceeded what any forecast window had scheduled.
Click a title to open the source. Click a scaffold tag to narrow the feed. Click a fork chip to jump to that fork’s current read.