They do "understand" in some sense that is good enough for practical usage: https://news.ycombinator.com/item?id=45067653 https://news.ycombinator.com/item?id=4

They do "understand" in some sense that is good enough for practical usage: https://news.ycombinator.com/item?id=45067653 https://news.ycombinator.com/item?id=45067653 TL;DR: Even without being explicitly prompted to, a pretty weak LLM "knew" that a thousand glasses of water was an unreasonable order. I'd say that's good enough to call "common sense".