> We can establish mental properties through ordinary physical means. Give a chicken cocaine, give a boy Valium; give a bear a lobotomy, and so on. Whatever mental property you have can be biochemically moderated across all objects which share that property.

All three of those "ordinary physical means" are inherently biological in nature. If you define intelligence as requiring biology, than sure, by definition ChatGPT is not intelligent. If you don't, it's not at all obvious what the equivalent of getting an AI high or doing brain surgery on it would be. Either way, your comment comes across as fairly condescending, and while it might not be intentional, I think it would be reasonable to give people the benefit of the doubt when they don't agree with you given that your points will not always come across as obviously correct.