I still haven't grasped, how is human learning from a book different from machine learning from a book?

If i read your book and then use the knowledge to answer someone's question is it not the same if machine does it?

Does chat gpt plagiarize the book word for word? Was it trained on an illegally obtained copy?

Still, if i get knowledge from unlicensed copy of a book and use that knowledge, at what point is the law broken?