I am confused about why Gary Marcus thinks it's so obvious that Claude isn't conscious. As he points out, Dawkins is just taking a bog-standard behaviorist position: that he can't distinguish Claude from a conscious being just by the behavior here. Marcus is saying "Well, if you knew they were trained to mimic, then you'd understand it's just mimicry and not real consciousness" The problem with this argument is that…
He handwaves consciousness as "internal states" as if that means anything and as if an LLM has no internal state. (This seems to be the analog for "divine touch".) He can't define consciousness rigorously, partly because we don't at all understand consciousness, but also because any attempt to do so would allow a scientific response.