Adds Section 6.3 (Naming Variety) with guidelines for avoiding theme-park naming — max 30-40% Earth transplants, mix in founder names, local features, corporate designations, and evolved forms. Also adds foundational note clarifying that culture, politics, and economics are independent axes along corridors: systems can share any combination with neighbours without cultural branding. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>