That argument you posed does not follow. Brains do all of those things, at least I know mine does because those are the most intimate experiences I have. More intimate than even my sense experiences. It's what lead Kant to exclaim 'cogito ergo sum' and Ibn Sina before him to also note that fact.
Moreover how the brain does what it does an open academic question. One of the most difficult, please see the Hard problem of consciousness for example.
I can make certain determined judgments about things, my digital thermometer does not think or understand when it tells me the temperature, something I myself would be unable to determine. My digital LLM does not think for the same reason. Importantly my paper and pen version of that very same LLM would also not think.
Moreover how the brain does what it does an open academic question. One of the most difficult, please see the Hard problem of consciousness for example.
I can make certain determined judgments about things, my digital thermometer does not think or understand when it tells me the temperature, something I myself would be unable to determine. My digital LLM does not think for the same reason. Importantly my paper and pen version of that very same LLM would also not think.