On the screen, an animated figure takes a step forward and tries to walk. Instead it collapses immediately, falls on its back, and flails its legs helplessly. Then it reappears at the left of the screen, takes a few delicate baby steps, and falls again. Returning to the screen, it raises its knees, takes six or so confident strides, and drops on its side. After trying over and over again to walk, the figure finally marches successfully across the screen as though its motions had been captured directly from videos of a human walking.
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