I don't believe humans are stochastic parrots, at least not in any way that makes drawing equivalence between human congnition and LLMs meaningful. Your own comment here would appear to be an example of something other than you "regurgitating the most likely relevant portions of your knowledge in the way you're guessing is most pleasing for others to perceive," since it contradicts the implied assumptions of the parent poster, who is in essence providing the prompt for your response.

That said, Voltaire was a philosopher. Posting him as an appeal to authority for what amounts to an argument about neuroscience is specious. Posting actual research demonstrating that human cognition works in the same way as LLM token matching and, more so, that it is limited in the same ways such that the phrase "humans are stochastic parrots" should be considered a statement of fact rather than belief would make your argument stronger.