That's literally what the conversation is about: what is knowledge?
You cannot claim that descriptive knowledge of something is equivalent to experiential knowledge of it, unless you have a theory of knowledge explaining why this is the case.
You asked for a description: "Can you tell me what it feels like to eat a hamburger"
I am sure I Fable (or GPT-5.6-Sol) could answer this question very well. It can probably even tell us what it feels like to eat a hamburger for the first time when you spent the first 18 years of your life as a vegetarian.
I don't think you understand the premise of the question.
Asking another person or Fable what it feels like to eat a hamburger will give you a description of what it feels like. It will not give you the actual feeling. You are merely repeating words that someone else has told you. The description of something is not equivalent to the experience that comes from doing it yourself, as an experiencing subject. Reading a war journal about being in battle is not equivalent to the actual experience of being in battle.
To illustrate the point again: if we gathered ten people that all spoke different languages and gave them a hamburger, they would all gain the knowledge of what it feels like to eat a hamburger, even if none of them are able to communicate this to the others in language.
I understand the premise. My answer was meant to illustrate that, no, the 'original experience' is not needed, and that AI can produce a good answer relying only on '"data that mirrors" experiences'.
It can provide an actual answer of what it feels like.
If I've understood you correctly, your objection is that this description is second hand, rather than being a description of the model's own feelings.
Like if I write a description of what it's like being a soldier in a war zone, despite never having been a soldier and never having been in a war zone. Perhaps I can write something plausible if I've read enough and use my imagination.
snakeboy (whose commend started this subthread) seems to claim that having real experiences (not just having learned of others' experiences through reading) is a prerequisite to creating something 'truly original'.
Is that your position also?
If so, is there any possible demonstration that could change your mind?
You cannot claim that descriptive knowledge of something is equivalent to experiential knowledge of it, unless you have a theory of knowledge explaining why this is the case.