We're not predicting the next word we're most likely to say, we're actively choosing the word that we believe most successfully conveys what we want to communicate. This relies on a theory of mind of those around us and an intentionality of speech that aren't even remotely the same as "guessing what we would say if only we said it"
When you talk at full speed, are you really picking the next word?
I feel that we pick the next thought to convey. I don't feel like we actively think about the words we're going to use to get there.
Though we are capable of doing that when we stop to slowly explain an idea.
I feel that llms are the thought to text without the free-flowing thought.
As in, an llm won't just start talking, it doesn't have that always on conscious element.
But this is all philosophical, me trying to explain my own existence.
I've always marveled at how the brain picks the next word without me actively thinking about each word.
It just appears.
For example, there are times when a word I never use and couldn't even give you the explicit definition of pops into my head and it is the right word for that sentence, but I have no active understanding of that word. It's exactly as if my brain knows that the thought I'm trying to convey requires this word from some probability analysis.
It's why I feel we learn so much from reading.
We are learning the words that we will later re-utter and how they relate to each other.
I also agree with most who feel there's still something missing for llms, like the character from wizard of Oz that is talking while saying if he only had a brain...
There is some of that going on with llms.
But it feels like a major piece of what makes our minds work.
Or, at least what makes communication from mind-to-mind work.
It's like computers can now share thoughts with humans though still lacking some form of thought themselves.
But the set of puzzle pieces missing from full-blown human intelligence seems to be a lot smaller today.