infospace: process book-4-introduction

Extract entities, map to VSM, and synthesize analysis.

examples/infospace-with-history/output/entities/economic-system-adaptation.md

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+<!-- generated: provider=openrouter model=arcee-ai/trinity-large-preview:free date=2026-02-19 source=book-4-introduction -->
+
+# Economic System Adaptation
+
+## Definition
+
+The process by which nations and societies modify their economic arrangements in response to changing circumstances, technological developments, and evolving understanding of wealth generation. This adaptation reflects the dynamic nature of economic systems and their responsiveness to environmental conditions.
+
+## Source Chapter
+
+Book IV, Chapter 0
+
+## Context
+
+Smith's discussion of different systems for different ages and nations implies the concept of economic adaptation, suggesting that successful political economy requires systems that can evolve with changing circumstances and understanding.
+
+## Economic Domain
+
+General Theory
+
+---