I could have phrased it better, but the emphasis is on "fuzzy"! There isn't any evidence for any of this, it's pre-scientific.
My statement is an opinionated position on how we should direct our research efforts and ascertain what is plausible: the behavioral similarities between humans and cats are much more relevant to the question of consciousness than the behavior similarities between humans and Claude, because cats are obviously conscious and that's not true for Claude. The fact that there are almost no behavioral similarities between cats and Claude suggests to me that "Claude might be conscious" is just a ridiculous statement not worth engaging with, even at the level of pre-science. At the very least, the burden is on Amanda Askell and Dario Amodei to explain why nonhuman animals are irrelevant to the question of Claude's consciousness. They have not offered anything like that; instead they seem fully ELIZAed by the chatbot, high on their own supply.