Good discussion about the limits (or not) of simulators like ChatGPT. https://www.lesswrong.com/posts/MmmPyJicaaJRk4Eg2/the-limit-of-language-models
(Warning: The post is structured strangely. It starts by arguing for unlimited simulation power, and then counterargues. Don't give up early. The comments also have good discussion.)
Comment discussions: whether the structure of the transformer architecture is able to, in principle, carry out complex enough computations to simulate conscious minds.