[flaptrap]

The fallacy in the 'fair use' logic is that a person acquires a book and learns from it, but a machine incorporates the text. Copyright does not allow one to create a derivative work without permission. Only when the result of the transformation resembles the original work could it be said that it is subject to copyright. Do not regard either of those legal issues are set in concrete yet.

[mensetmanusman]

Both a human and a machine learn from it. You can design an LLM that doesn’t spit back the entire text after annealing. It just learns the essence like a human.

[badmintonbaseba]

Morally maybe, but AFAIK machines "learning" and creating creative works on their own is not recognized legally, at least certainly not the same way as for people.