Cherry-picking a couple of points I want to respond to together

It is somewhat like a memory buffer but, there is no analysis being linguistics. Short-term memory in biological systems that we know have multi-sensory processing and analysis that occurs inline with “storing”. The chat session is more like RAM than short-term memory that we see in biological systems.

It is also purely linguistic analysis without other inputs out understanding of abstract meaning. In vacuum, it’s a dead-end towards an AGI.

I have trouble with this line of reasoning for a couple of reasons. First, it feels overly simplistic to me to write what LLMs do off as purely linguistic analysis. Language is the input and the output, by all means, but the same could be said in a case where you were communicating with a person over email, and I don't think you'd say that that person wasn't sentient. And the way that LLMs embed tokens into multidimensional space is, I think, very much analogous to how a person interprets the ideas behind words that they read.

As a component of a system, it becomes much more promising.

It sounds to me like you're more strict about what you'd consider to be "the LLM" than I am; I tend to think of the whole system as the LLM. I feel like drawing lines around a specific part of the system is sort of like asking whether a particular piece of someone's brain is sentient.

Conversely, if the afflicted individual has already developed sufficiently to have abstract and synthetic thought, the inability to store long-term memory would not dampen their sentience.

I'm not sure how to make a philosophical distinction between an amnesiac person with a sufficiently developed psyche, and an LLM with a sufficiently trained model. For now, at least, it just seems that the LLMs are not sufficiently complex to pass scrutiny compared to a person.