These kind of reductive thought-terminating cliches are not helpful. You are using a tautology (it doesn't think because it is retrieving data and retrieving data is not thinking) without addressing the why (why does this preclude thinking) or the how (is it doing anything else to generate results).
There is nothing in the LLM that would have the capability to create new information by reasoning, when the existing information does not already include what we need.
There is logic and useful thought in the comment, but you choose not to see it because you disagree with the conclusion. That is not useful.
