Say you read something, and it changes your neural structure. Then you write it down on a sheet of paper, extending your memory to the environment.
When you read it again, at what point is the human cognition not simply the production of the thing inside a skull, but also the paper?
“In traditional classrooms, students complete a lesson and move on to the next when it is time for the whole class to do so, regardless of whether they have mastered it or they are already well ahead. Here each student worked at her or his own pace, taking as much or little time as necessary to complete one lesson and then moving on to the next.”
— Scientific American, August 2013