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It is priceless for a nation to be home to *the* frontier in an era. Every nation claims exceptionalism. The one with frontier is believed.
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But frontiers, like bottlenecks, can move suddenly when systems undergo phase shifts. We may be on the cusp of such a sudden move.
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If the answer to the question, "where is the nonzero sum party?" is not immediately brain-dead obvious, the frontier may be moving.
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There have been scares about frontier moving out of the US before: Germany, Russia, Japan and now China. Each time the fears were misplaced.
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The "this time it's different" case is: there isn't a specific competitor trying to "pull" frontier away. The US is *pushing* it away.
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So paradoxically, fact that the answer to "who is the challenger?" (China? Germany?) is not obvious makes the threat more severe, not less.
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