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Communications of the ACM

ACM Opinion

­se or Lose Our Navigation Skills

Regent Street, London

The paths of vehicles along Regent Street in London, revealed by long-exposure photography.

Credit: Paul Grogan/PhotoPlus Magazine via Getty Images

In 1984, I was part of a team that was developing a receiver for a satellite-navigation system. After weeks of debugging, the blur of random digits settled on a location.

From Nature
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