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"Cyberpunk worked when the Internet was in its hand-wound crystal radio phase, when you had to be a sort of hobbyist to do e-mail, and it all had a very steep learning curve. Those days are over."
- William Gibson

Underground MagLev Train  
  Magnetic levitation train that travels through a tunnel; a vacuum reduces drag.  

The train sat rigid as a steel bar, poised in midair above its magnetic monorail track, disgorging passengers into Dallas Station. Its fifteen cars had borne their passengers in quiet efficiency from New York to Dallas in just over half an hour, cradled in magnetic fields, traveling through vacuum at close to orbital velocity, deep underground.
Technovelgy from Dream Park, by Larry Niven (w/S. Barnes).
Published by Ace Books in 1981
Additional resources -

Depending on the depth of the tunnel, the train might also take advantage of a more direct route, as well as the accelerative force of gravity.

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Additional resources:
  More Ideas and Technology from Dream Park
  More Ideas and Technology by Larry Niven (w/S. Barnes)
  Tech news articles related to Dream Park
  Tech news articles related to works by Larry Niven (w/S. Barnes)

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