. Must be concise 2-4 sentences. Use only info provided. The news content cuts off: "To addre". But we have title, source, URL, author, date, description content partially. We can summarize based on provided info: It describes LLMs used for real-world actions but rely on parametric knowledge etc. It says paradigm breaks down in novel domains and for sophisticated queries; knowing physics doesn't enable LLMs to answer queries or complete long-horizon tasks in complex physical system. So summary: LLMs increasingly act in real world but depend on static knowledge, fail in novel domains and complex tasks; new approach? Probably "Hierarchical Experimentalist Agents". We'll craft 2-3 sentences. We must include link to original source: Read original We need to output only HTML, starting directly with

. So output something like:

LLMs are being used to act in the real world and assist human decisions, yet they typically depend on static parametric knowledge, retrieval, or search, which limits performance in novel domains and complex, long‑horizon tasks. This limitation is highlighted by the fact that even extensive physics knowledge does not automatically enable LLMs to