What makes thinking an interesting form of output is that it processes the input in some non-trivial way to be able to do an assortment of different tasks. But that’s it. There may be other forms of intelligence that have other “senses” who deem our ability to only use physical senses as somehow making us incomplete beings.
I am sure philosophers must have debated this for millennia. But I can't seem to be able to think without an inner voice (language), which makes me think that thinking may not be prior (or without) language. Same thing also happens to me when reading: there is an inner voice going on constantly.
It would be incredibly tedious to be surprised every 5 seconds.
Its possible something like this could be said of the middle transformer layers where it gets more and more abstract, and modern models are multimodal as well through various techniques.
It may be, by the end of my life, that this will no longer be true. That would be poignant.
I must believe this to function, because otherwise there is no reason to do anything, to make any decision - in turn because there is no justification to believe that I am actually "making decisions" in any meaningful sense. It boils down to belief in free will.
For what it's worth, I don't believe we have what people would call free will. Our brains operate either in an entirely deterministic universe, in which case everything was decided and your choices are not in any sense free, or we're in a universe with intrinsic randomness, and randomness doesn't make free will either.
I'm aware of the philosophy of Compatibilism, but this is just a sleight of hand to keep believing in some undefinable concept of free will.