Teaching machine, or Zombie Apocalypse?

Way back when, as early as the turn of the 20th century, there was a dream that one day we could develop a machine that would replace teachers and make learning painless, effortless, and efficient, as depicted below:

From Taylor, Thorndike, and Pressey, to Skinner, and now, the Dreambox, the idea has resurfaced multiple times over the past 100-plus years. Now, the dream is revived, like a zombie that keeps coming back. It takes the form of computers, filled with data, that will 'deliver instruction', assess progress, record and analyze results, and ultimately, replace the live teacher in the room.