Web Media

JIWA

What's happening in the world, and why it matters.

Decoded through data and structural analysis.

Where money flows, where talent goes, and what technology is changing.
A web media operated by Roppongi Venture Capital.

Deep Tech Decoded

2026.04.06

Where Do Science Olympiad Medalists End Up? — Tracking the Career Paths of the World's Brightest Students

40% of gold medalists earn PhDs and cluster at Google, Apple, and Meta — yet fewer than 5% start companies. What separates Japan from the rest? A structural analysis of 700+ tracked careers.

Energy Security

2026.04.02

What Happens If the Strait of Hormuz Shuts Down — Japan's Energy Structure in One Article

95% of Japan's crude oil and over 20% of its LNG pass through this strait. What happens to electricity prices if it's blocked? 8 charts visualizing Japan's energy dependency.

Global Money Map

2026.03.22

How Much Money Is There in the World? — The $600 Trillion Big Picture

Cash, equities, real estate, bonds, crypto — all global assets classified by the accounting equation, mapped into a single picture of ≈$600 trillion.