Why Does Nature Choose Pentagons and Hexagons — And Why Does History Choose 270 Years?
White & Green Co., Ltd. / Hiroshi Yamada The Secret of the Soccer Ball Look closely at a soccer ball. […]
Columns, The 270-Year Cycle: Theory & Definition
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A collection of columns interpreting current events and fragments of history from the perspective of Triple Cycle Analysis. This section provides ongoing updates of the author’s reflections and insights that go beyond the framework of academic papers.
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Could Iran and Saudi Arabia Form a “Satsuma-Chōshū Alliance”?──The Structural Conditions to Bridge 500 Years of Rivalry Are Emerging
270-Year Cycle × Geopolitical Analysis | April 2026 Could Iran and Saudi Arabia Form a “Satsuma-Chōshū Alliance”?──The Structural Conditions to
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Will the Iran War End in Autumn 2027?— A Four-Axis Analysis Reveals a Startling Roadmap
Will the Iran War End in Autumn 2027?— A Four-Axis Analysis Reveals a Startling Roadmap Yamada Hiroshi / White &
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The Day Trump Said “I Want to Take Iran’s Oil”——Is This the Beginning of the End of American Hegemony?
Yamada Hiroshi / White & Green Co., Ltd. | March 30, 2026Iran-U.S. War Analysis Series | Related paper: DOI: 10.5281/zenodo.19301666
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The Global Collapse-Type Trump Crisis――The Structure of Cascading Collapse Through the 270-Year Civilization Cycle
Yamada Hiroshi / White & Green Co., Ltd. | March 30, 2026 ■ Key Sources (March 2026) At the end
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Katayama’s Crude Oil Futures Intervention―The “Unprecedented Measure” Common to Every Fallen StateReading Policy Deterioration Through the 270-Year Civilization Cycle
Yamada Hiroshi / White & Green Co., Ltd. | March 2026 ■ Sources (March 2026) Finance Minister Satsuki Katayama stated
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The Modern Ōnin War (Middle East Conflicts) Has Begun— What the 270-Year Cycle Tells Us About the Next 100 Years
270-Year Cycle — Deep Analysis The Modern Ōnin War (Middle East Conflicts) Has Begun— What the 270-Year Cycle Tells Us
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33 Missiles That Kill America ～ The Perfect Trap, Nuclear Deterrence Rendered Useless, and the Fall of Hegemony — The Strategic Blindness Exposed by the 270-Year Cycle
270-Year Civilization Cycle Research — Essay Series 33 Missiles That Kill America The Perfect Trap, Nuclear Deterrence Rendered Useless, and
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The 2026 Iran–U.S. War — Battlefield Analysis, Geopolitical Consequences, and the Historical Turning Point Indicated by the 270-Year Cycle —
The 2026 Iran–U.S. War: Battlefield Analysis, Geopolitical Consequences & the 270-Year Historical Cycle [ Independent Analysis Report — Based on
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When the World’s Eschatologies Collide——What the Scriptures Foretold About the End and Rebirth of the World~ 2026: The Flames of the Middle East and the Ancient Prophecies
When the World’s Eschatologies Collide——What the Scriptures Foretold About the End and Rebirth of the World~ 2026: The Flames of