A structural lens for understanding asset survivability across regime change. Durability is not popularity. If something is admired, expensive, scarce, or culturally celebrated, we assume it will last. History suggests otherwise. Entire asset classes once considered untouchable have become structurally irrelevant within a generation. At the same time, certain estates, brands, districts, and institutions have quietly persisted through wars, inheritance shocks, tax regimes, pol

A Structural Framework for Capital Durability Modern finance is extraordinarily precise about pricing. It is far less precise about durability. We can model volatility, discount cash flows, measure correlation, optimize liquidity, and structure allocation with mathematical sophistication. Yet when confronted with a more fundamental question: why some capital structures endure across generations while others fragment within decades, our analytical vocabulary thins rapidly. Why