Tomorrow's Lesson: Learn or Perish

COMPUTERS WILL ACT AS TUTORS, TEACHERS WILL BE WELL-PAID HEROES, AND DOING YOUR HOMEWORK WILL BE A MATTER OF SURVIVAL

The group is trudging along a pathway through the forest, looking something like an extended family on vacation: small children, teenagers, middle-agers and older people. But when the walkers suddenly emerge in a wide meadow, it is clear that something strange is happening. On one side of the clearing stands the gray-clad army of Robert E. Lee, and on the other the dark blue-uniformed infantry serving under George Meade. As the hikers stand and watch, bugles sound, guns begin to fire and the battle of Gettysburg is under way.

Real as it seems, the entire scene has been staged. The year...

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