What does it mean to really understand the meaning of a pattern? An answer that is not a simple "look at ChatGPT, it fails at this task", since in most cases it

What does it mean to really understand the meaning of a pattern? An answer that is not a simple "look at ChatGPT, it fails at this task", since in most cases it is already no problem for GPT-4, and does not really prove that this particular task cannot be solved by a LLM. Also I see, "super-spell checker" is the new "fancy markov chain".