See unseen risks
first.
BONGSU starts from empirical analysis of cause and effect. Then we seal, score, and disclose — down to the raw data and code.
Leave it on — BONGSU will tell you.
Plays in the official YouTube player. It starts muted — press "Turn on TV sound" once (background music stops automatically). Rights to the CH 2, CH 4 and CH 5 videos belong to their original publishers; CH 2 belongs to its original publisher (K-POPIT). BONGSU tracks this new group's results by sealing and scoring (96-group empirical analysis · sealed probability 14.8% →). · Subscribe to BONGSU
Bongsu & Bongi — Fryktopia, the Safe Zone
Every street you light up by day becomes a signal fire. Bongi, the spirit who guarded the fire towers, waits with the seal orb. Each path you light raises your rank — and opens a ceremony where Bongi hands you the seal orb. Free · for everyone · no sign-up. (The game is in Korean.)

Where beacon towers once lit fires, we now signal with data.
Joseon's beacon towers relayed only what they saw — smoke by day, fire by night. BONGSU follows the same rule: we measure geopolitical, disaster and everyday-safety risk with real data, seal our judgments in advance, and are scored by the outcome.
Unlike the panopticon that watches in hiding, or Palantir that watches by linking, BONGSU sees and tells. We borrow the names of the ancient Greek beacon network:
- Phryktoria ΦΡΥΚΤΩΡΙΑ — theory: BONGSU-style public warning
- Phryktoris ΦΡΥΚΤΩΡΙΣ — method: empirical analysis → seal → score → disclose → warn
- Phryktoros ΦΡΥΚΤΩΡΟΣ — a BONGSU staff member (beacon keeper)
- Phryktopia ΦΡΥΚΤΟΠΙΑ — the world we aim for: a safe place where the beacons are lit
ΦΡΥΚΤΩΡΙΑ ΠΛΗΡΟΦΟΡΙΩΝ renders BONGSU Intelligence in Greek (a beacon network of information). ΦΡΥΚΤΩΡΙΑ (beacon network) and ΦΡΥΚΤΩΡΟΣ (beacon keeper) are real ancient Greek words; Phryktoris, Phryktopia and the staff title are BONGSU coinages modeled on Greek.

BONGSU, ready the moment you tap.
Nothing to install, no sign-up. Add it to your phone's home screen like an app. (Tools are in Korean.)
Safe-birth navigator
Finds a maternity hospital that will take you at each stage — labor, high risk, emergency — and guides you there. One tap to 119 and 112.
Open →
02 · Everyday safetyCrime-forecast alert
Leave it on and it warns you before you enter a risky alley. Location text to a guardian · fake call.
Open →
03 · Everyday safetyTaxi safety meter
Measures hard acceleration, hard braking and speeding in your taxi, filters GPS errors, and judges by the transport-safety agency's vehicle-class standards. v0.3
Open →
04 · Real estateReal-estate price board
Apartment prices in 22 regions shown like stock quotes. Candlestick charts · supply · interest rates.
Open →
05 · Investment indicatorsBONGSU model indices
The chip duo, the big three, Hyundai Motor. To cash when the trend breaks — daily BONGSU AI briefing. Hypothetical indices · not investment advice.
Open →
06 · Probability experimentLotto probability experiment
We seal the numbers before the draw, buy the ticket ourselves, and publish how many matched along with the odds. Every week.
Open →
07 · TransparencyHuman Involvement Index (BHII)
Measures the human share of papers written with AI. Text layer 0.5 · idea layer 51.5 · collaboration index 84.3 — published as is, even when low.
Open →
08 · Safety gameBONGSU Safety Game — to Phryktopia with Bongi
Briefly record and light up the streets you walk by day, and climb the Goryeo military ranks from Daejeong to Sangjanggun. Free · for everyone · no sign-up. Records stay on your phone only.
Open →
From cradle to grave, the numbers of your life.
The Human Security series "Life-cycle financial planning" calculates pensions, assets, education costs and housing from national statistics and real market data. Your inputs are never sent to a server. For education and information only — not investment advice.
Three-pillar pension planner
National, civil-service, military and private-school pensions; occupational pensions (DB·DC) and severance; personal pensions. Life expectancy by sex, equity share, annuity vs lump-sum tax. A 3D pension building.
Open → 02 · Building wealthAsset portfolio planner
18 years of real KRW returns on 8 assets, the probability of reaching a 25-year goal, after-tax comparison of regular, ISA and pension-savings accounts. 3D asset mountains and portfolio universe.
Open → 03 · Children's educationEducation cost planner
KRW 105 million per child from infancy to university (national average). Differences by region, income, English kindergarten and university type, and the opportunity cost for parents' retirement. A 3D education-cost city.
Open →Mothers in depopulating areas live 3.8 times farther from a maternal and child medical center.
Sources: HIRA, 420 facilities able to deliver (30 Apr 2026) · Ministry of Health and Welfare, 55 maternal and child medical centers (27 Aug 2025) · Ministry of the Interior and Safety, 92 depopulating areas · OSRM road times. Based on district reference points — may differ from actual home locations.
224 empirical papers, with raw data and code.
Eight shelves, from geopolitics to everyday safety. Summaries are free; raw data from KRW 1,000.
Background: Ansan beacon detail from Kim Jeong-ho's Cheonggudo (1834) — public domain, monochrome. Holding-institution credit to be added after verification.
BONGSU烽燧 · BONGSU INTELLIGENCE