Exactly. That's what I also thought the last time someone brought this up in these forums (couple of years ago). It's a hint to the structure of the brain and also the mind (we can observe it at the consciousness level in ourselves and others, too). Algorithmic (von Neumann) computers/programs do not usually exhibit this; but neural networks do.

If we are good readers, a book helps up achieve better generalization (in the machine learning sense). That's its main contribution not the specific facts it contained.