“consider what’s happening in this book when I describe sandbox play as the beginning of the age of the individual, dinner as the ritualized celebration of industrialization, television as a new hearth, clockwork mechanics as the foundation of twentieth-century developmental health, penmanship as up-skilling for a burgeoning capitalist economy, and card catalogs as a representation of an obsolete epistemological attitude. I’m situating the familiar technologies of the past in a hopeful story about a digital future—a future that requires folks to understand information in a drastically new way. If the old education cultivated habits of mind for a card-catalog world, then the new education needs to build habits of mind for a world of nonlinear hyperlinks. Luckily, situation theory can help.”