"A father and his son are in a car accident [...] When the boy is in hospital, the surgeon says: This is my child, I cannot operate on him".
In the original riddle the answer is that the surgeon is female and the boy's mother. The riddle was supposed to point out gender stereotypes.
So, as usual, ChatGPT fails to answer the modified riddle and gives the plagiarized stock answer and explanation to the original one. No intelligence here.
Or, fails in the same way any human would, when giving a snap answer to a riddle told to them on the fly - typically, a person would recognize a familiar riddle half of the first sentence in, and stop listening carefully, not expecting the other party to give them a modified version.
It's something we drill into kids in school, and often into adults too: read carefully. Because we're all prone to pattern-matching the general shape to something we've seen before and zoning out.
It seems to be more like a weighing machine based on past tokens encountered together, so this is exactly the kind of answer we'd expect on a trivial question (I had no confusion over this question, my only confusion was why it was so basic).
It is surprisingly good at deceiving people and looking like it is thinking, when it only performs one of the many processes we use to think - pattern matching.
In my own experience, when I'm asked a question, my inner voice starts giving answers immediately, following associations and what "feels right"; the result is eerily similar to LLMs, particularly when they're hallucinating. The difference is, you see the immediate output of an LLM; with a person, you see/hear what they choose to communicate after doing some mental back-and-forth.
So I'm not saying LLMs are thinking - mostly for the trivial reason of them being exposed through low-level API, without built-in internal feedback loop. But I am saying they're performing the same kind of thing my inner voice does, and at least in my case, my inner voice does 90% of my "thinking" day-to-day.
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[0] - In fact, many years before LLMs were a thing, I independently started describing my inner narrative as a glorified Markov chain, and later discovered it's not an uncommon thing.
The point of o1 is that it's good at reasoning because it's not purely operating in the "giving a snap answer on the fly" mode, unlike the previous models released by OpenAI.