Hey everyone! If you’re curious about the idea from Clay Shirky that Miller references in “Reading in Slow Motion,” you can read more about it here: http://www.herecomeseverybody.org/2008/04/looking-for-the-mouse.html
There’s an updated, more polished version in his book, Cognitive Surplus, but the concepts are the same, and I remember being very struck by the idea when he first posted it a few years ago.