>Are you arguing that with a set of identically-behaving black boxes, one could be "reasoning" and one could be "not reasoning", and a person would need to look inside the boxes at how they function to decide?
Absolutely! Inside one of the black boxes could be an audio device replaying a tape. The other could be a person thinking and responding. The massive lookup table construct people like to reference is just another kind of recorder, it takes every possible conversation that could happen in some finite sequence of characters and produces the precomputed continuation on demand. No one ever asks where those conversations came from. If God has to imagine them in his mind, conversing with the lookup table is just conversing with God.