Human knowledge is ultimately embodied in physical experiences, it is not merely spitting out words. How can an LLM know the taste of a mango? Ability to regurgitate previously written text about mangos is neither knowledge nor intelligence. To know something, one must experience it, or something analogous to it.
Even mathematicians "experience" their formulas and proofs in an ineffable way, they don't just produce text. There's an "aha" moment when learners "get it" and they experience knowledge and are then able to produce correct answers and generate new knowledge and discoveries. LLMs just generate text, and have yet to produce any significant new discovery in any field.
LLMs are like fake wine sommeliers who have read a lot of lingo about wine and can speak convincingly enough to fool an amateur but would fail a simple taste test. We would say such a person doesn't know what he's talking about.
People who think LLMs are intelligent are like a cargo cult, or polytheists who believe their idols are gods. They're anthropomorphizing processes they don't understand. How can a probabilistic next-token word predictor be intelligent? Actual mammal brains are far more complex than that.