The paper spell it out although slightly convolute, i.e. models can exhibit concepts of emotion... and given that there is no scientific consensus what are emotions, it is hard to make an argument that these "concepts" are anything like emotions.

They talk about emotion vectors, bla bla, but it is clear the wording is around "concept of emotions" not actual emotions.

And yes reading a book gives you a concept of what is like to be that character including their emotions. That is what language communicates and it is hardly surprising if you ask me.

I'm fine with the idea that a machine can be "worried" it wont be able to accomplish a task, and copes with this "worry" by cheating a little and making the task seeming done. (I don't like that this happens, I'm fine with the idea that "worry" in this context is a functional emotion)

also https://arxiv.org/abs/2603.10011 and Gemma has tried to delete itself after it fails at a task. I'm not saying the machines "feel" or we should have deep empathy for them, and this totally could've been learned in pretraining, but functional emotions are not a crazy fine idea.