>Being sexually aroused is not art, it is an occurrence in the real world.

Based on the definition I shared, it's not about your feelings. It's the quality of what made you feel that way. An important bu subtle difference.

To take your example, it's less about the chatbot and more about how and what it responds with. If suddenly it's responding based on its remembered experiences and sense of the world, I. E. 'Sentience', we would start to wonder if its science fiction.