Is reading and memorizing a copyrighted text a breach of copyright? I.e. is creating a copy of the text in your mind a breach of copyright or fair fair use? Is it a breach of copyright if a digital “mind” similarly memorizes copyrighted text? Or is it only a breach of copyright to output and publish that memorized text?

What about loosely memorizing the gist of a copyrighted text. Is that a breach or fair use? What if a machine does something similar?

This falls under a rather murky area of the law that is not well defined.