For all intents and purposes your brain might as well be a Boltzmann brain / in a jar getting electrical stimuli. Your notion of reality is a mere interpretation of electrical signals / information.
This implies that all such information can be encoded via language or whatever else.
You also don’t take initiative. Every action that you take is dependent upon all previous actions as your brain is not devoid of operations until you “decide” to do something.
You merely call the outcome of your brain’s competing circuits as “taking initiative”.
GPT “took initiative” to pause and ask me for more details instead of just giving me stuff out.
As for the latter, I don’t think that holds. Language is just information. None of our brains are even grounded in reality either. We are grounded in what we perceive as reality.
A blind person has no notion of colour yet we don’t claim they are not sentient or generally intelligent. A paraplegic person who lacks proprioception and motor movements is not “as grounded” in reality as we are.
You see where this is going.
With all due to respect, you are in denial.