Libraries acquire proper licenses for a particular manner of use. That license takes into account what a human and technology are capable of. Moreover, even beyond that, you aren't allowed to just utilize an IP however you wish just because you managed to memorize the contents.

I'm not someone in favor of overly broad copyright and authors' rights but it's certainly not an either nothing or everything dilemma.

Stolen in the context of someone claiming “we did this all ourselves in-house”.