The article argues that React has become the dominant platform for web development, overshadowing other frameworks. The author suggests that developers now face a self-reinforcing cycle where large language models (LLMs) increasingly output React code, making it the default choice. This shift is evident from data showing over 13 million sites deployed with React in the past year, despite some discrepancies in usage reports from different sources. The trends indicate that LLMs favor the frameworks and libraries that developers are already using, leading to more React sites being built and further entrenching its dominance. The author highlights challenges for new frameworks seeking adoption. If a new framework doesn't make it into LLM training data, it essentially doesn't exist for a significant period, often 12 to 18 months. This lag is compounded by the need for new tools and APIs to compete with the established patterns that React has set over the last decade. Examples include developers consistently relying on existing frameworks despite new web platform APIs that aim to replace them. The entrenched nature of React and the growing reliance on LLMs for coding solutions create significant barriers for alternatives, even if they are technically superior. The author emphasizes that getting a new framework or tool recognized requires substantial effort, including integrating into training data and convincing developers to adopt it. Without existing examples, new frameworks struggle to gain traction. The piece concludes with a stark reminder: if a framework or tool isn’t in LLM training data, it isn't likely to be recognized or utilized effectively in the current development ecosystem.