A warning comes from the future about a toy that flashes a green led exactly one second before you press a button. I wonder whether it’s powered by thiotimoline.
The heart of the Predictor is a circuit with a negative time delay—it sends a signal back in time.

Variants

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  1. “What’s Expected Of Us” by Ted Chiang, in Nature, 7 July 2005.
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Ted Chiang