React Myths That Just Won't Die

The article debunks persistent React misconceptions that LLMs and outdated tutorials continue to propagate, such as the belief that components only re-render when their props change. It clarifies that React re-renders children whenever a parent re-renders regardless of prop changes, and that React.memo works at the reconciliation step. The piece also challenges the reflexive use of useMemo and useCallback as default optimizations, arguing these patterns stem from convenient but inaccurate mental models.