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The first automobiles were really horseless carriages, designed on the same frame as a horse-drawn carriage and with power defined in horsepower. The capabilities of these early contraptions were limited, and the infrastructure to support this new form of mobility was slow to develop as the early car owners rattled across the ruts and sank into the mud of unpaved and poorly maintained roads. These days, our society is built around the mobility provided by today's automobiles, and we are seeking to expand the infrastructure to accommodate battery-powered vehicles. How close is this analogy to the early stages of experimenting with cyberspace? I think the two stories are very similar, and I look forward to the day when the ruts in the cyberspace highway have been smoothed for a true community of learners to improve our world.

"What I'm on my high horse about is focus,"

Ultimately, the question of whether the digital revolution is good or bad is irrelevant; it's here, just like the telephone, the TV or the automobile

“Adaptive technologies presume that knowledge can be modularized and sequenced,” says Watters, the education writer. “This isn’t about the construction of knowledge. It’s still hierarchical, top-down, goal-driven.”

e latest techno-fad, destined to distract administrators and upset curricula for a few years until the next one comes along. But there are two reasons why adaptive learning might prove more durable than that. The first is that the textbook companies have invested in it so heavily that there may be no going back. The second: It might, in at least some settings, really work.

“I like to think of analogies to other places where science and technology have had an impact, like transportation. We went from walking to horse-drawn carriages to Model Ts, and now we have jet planes. So far in educational technology, we’re in the Model T stage.”