Cognitive Scaffold

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MENTAL MODEL · M0773

Heartland Theory

Heartland Theory
DecideHigh supportGame Theory
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Proposed by Mackinder. Whoever rules Eastern Europe commands the Heartland (the core of the Eurasian continent); whoever rules the Heartland commands the World Island; whoever rules the World Island commands the world.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Understanding great power competition. It provides a geographically deterministic perspective, explaining why historically land powers (such as Russia and Germany) and sea powers (such as Britain and the United States) have always contended for the interior of the Eurasian continent.

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Anchor fast decisions

Halford Mackinder proposed: whoever controls Eastern Europe, the 'Heartland', can control the 'World Island', and thereby dominate the world. The logic is the strategic depth advantage of land power over sea power; geographic infrastructure determines the pattern of hegemony.

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/The_Geographical_Pivot_of_HistoryZH · Explicit
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