Scarcity

This experience informs David Warlick's work:

It’s just another of those discoveries that force me to think back to my days as a history teacher, and the incredible scarcity of content that I had available to me, and how that scarcity defined what and how I taught.

However, out of the many, many critques of American schools I've read, I can't recall ever reading that a lack of access to information was a central problem, and to the extent it has been a problem at all, the answer was always straightforward. You can throw money at a library.

This is one reason why David's work always seems slightly off the mark to me.