Some thoughts: the schema is only partially there, at least for me. I can read and understand the content, but if I'm removed enough from when I first read or stored it, I've lost the context in which I was seeing it and the relationships within.

Having something that models the mind is the absolute goal - that would be amazing. It's definitely possible, and a lot of this labour might equate to needing to have a good sense of direction and map-reading skills before we had GPS.