does it really matter? If it quacks like a duck, it's a duck I think it absolutely matters if by only quacking we also want to know is it possibly wanting, fee

does it really matter? If it quacks like a duck, it's a duck I think it absolutely matters if by only quacking we also want to know is it possibly wanting, feeling, experiencing, having an ego etc. You say LLMs are able to reason, but https://youtu.be/QO2BvVq_fWU?t=663 https://youtu.be/QO2BvVq_fWU?t=663 here is a proponent of the more simplistic explanation of how they work. On one hand I saw pretty convincing arguments for it having the ability to reason, on the other hand how do we even conclude anything if we can't really know what's in the training data.