Abstract: People habitually carve the React/Vue and Zova camps into "functional vs object-oriented." But React's Fiber nodes and Vue's component instances reveal a fact: beneath that so-called functional style, an object system is always hiding. The real dividing line is not syntax — it is who owns state identity, scope, and lifecycle: the closure, or a container-managed bean. This article re-reads the paradigm debate through two cost curves: the functional style pays "architectural entropy" af...