I don't know of a human-independent definition of consciousness, do you? If not, how can one say that "something else is conscious"? So the statement
increasingly complex simulations of humans could be both "obviously" not conscious but be mistaken by others as conscious
will only make sense once there is a definition of consciousness not relying on being a human or using one to evaluate it. (I have a couple ideas about that, but they are not firm enough to explicate here.)
I don't know of a human-independent definition of consciousness, do you? If not, how can one say that "something else is conscious"? So the statement
I don't know of ANY definition of consciousness which is testable, human-independent or not.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.