What I’d like to add to Nick’s list is one observation: none of those predictions was completely unreasonable at the time. Heck, I might have made one or two of them myself. Which raises, I think, the key question: why has what some people call “the traditional classroom” — a group of students chosen primarily by age and secondarily by ability, placed in a room with one or two teachers, and relying heavily on printed paper for information and testing — been so resilient? Is it because educators are in general technologically retrograde? Or is there something rather functional about that setup? Or some combination of the two?