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Culture War Roundup for the week of March 27, 2023

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Maybe you and I have different definitions of "understand" but this seems clearly false to me.

ETA:

Perhaps better to say, I don't see what this statement has to do with LLMs.

Let me break it down:

  1. LLMs understand words and sentences (or at least the relationships between them).

  2. If a concept can be expressed in words, then what that concept means is encoded by how the words that express that concept relate to the words that express any other concept.

  3. Therefore, as an LLMs capability to relate words and sentences to each other approaches or exceeds human level, the LLMs understanding of concepts approaches or exceeds human level.

This is a very high-level explanation, but I think it captures the core intuition.

I must ask, what is the most powerful LLM you have personally interacted with? Default ChatGPT feels like talking to a 6-year-old after using Bing and GPT-4.

I guess (1) is where I disagree. I think there's a substantial difference between understanding the meaning of a word and understanding that word's statistical relation to other words. LLM's understand the latter, but not the former.

I must ask, what is the most powerful LLM you have personally interacted with? Default ChatGPT feels like talking to a 6-year-old after using Bing and GPT-4.

I've used Bing and it's still pretty easy to ask it questions that demonstrate it doesn't understand the semantic content of what it is being asked. Here's an interaction I had just now:

M: Write a fifteen word story

B: Sure! Here’s a fifteen-word story for you: “The last man on Earth sat alone in a room. There was a knock.”

M: Write a fifteen word story

B: Sure! Here’s another fifteen-word story for you: “The baby’s cry was the only thing that could stop the apocalypse.”

M: Write a fifteen word story

B: Sure! Here’s another fifteen-word story for you: “The last thing I saw was my alarm clock flashing 12:07 before she pushed her long rotting nails through my chest.”

I asked it the same question three times and never once did it give me a story that actually had fifteen words in it. It clearly does not understand what "fifteen" means and how the presence of the word in the my sentence should constrain its answer.

Hmmm, you're right. GPT-4 does in fact have trouble writing 15-word stories.

Me: Write a story with exactly 15 words

GPT-4: Moonlit whispers, midnight rendezvous. Time halted, love bloomed. Hands entwined, destiny united. Eternal adventure commenced together.

Me: How many words does this story have?

GPT-4: This story has exactly 15 words.

Me: Count them

GPT-4: Here is the story with each word numbered:

1.Moonlit

2.whispers,

3.midnight

4.rendezvous.

5.Time

6.halted,

7.love

8.bloomed.

9.Hands

10.entwined,

11.destiny

12.united.

13.Eternal

14.adventure

15.commenced

The story indeed has 15 words.

Me: You forgot to number "together"

GPT-4: My apologies, I indeed missed the word "together." Here is the corrected numbering:

1.Moonlit

2.whispers,

3.midnight

4.rendezvous.

5.Time

6.halted,

7.love

8.bloomed.

9.Hands

10.entwined,

11.destiny

12.united.

13.Eternal

14.adventure

15.commenced

16.together

The story actually has 16 words. Thank you for pointing that out.

Me: Fix it to make it 15 words

GPT-4: Here's the revised story with exactly 15 words:

Moonlit whispers, midnight rendezvous. Time halted, love bloomed. Hands entwined, destiny united. Eternal adventure commenced.

On the other hand, I was able to get it to write a 68 word story on the first try.

Me: Write a story with exactly 68 words

GPT-4: Beneath the murky sky, a lonely robot wandered the abandoned city. For years, it searched for signs of life, collecting trinkets from the ruins. One day, the robot stumbled upon a withered book, its pages filled with tales of love and laughter. Entranced, it began to read. As the robot savored each word, it understood the beauty of human emotion and yearned to be more than just metal.

Trying this experiment with multiple 2-digit numbers X, it looks like GPT-4 outputs a story with X ± 2 words. I have updated slightly against GPT-4's capabilities (I expected it to get the exact answer most of the time), but I still hold to my original thesis. This is a quantitative error, not a qualitative error. The presence of the number in the input sentence does in fact constrain the output. Asking for a story with 68 words gives an output with more words than asking for a story with 49 words, but less words than asking for a story with 96 words. The model does have some concept of what these numbers are.

All that is trivially shown false by how LLMs persistently fail at the most basic mathematical problems as soon as solving those would require understanding instead of just stringing words together. They are very efficient bullshit generators but to claim they "understand" anything is a massive exaggeration.