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"I forged a concept which is relatively simple and possibly unique in theology, and that is, the irrational is the primordial stratum of the universe."
- Philip K. Dick

Digital Paper Pad  
  Just one molecule thick, it flips bits by flipping molecules.  

Maggie entered it all into her digital paper pad, one of her rich-girl toys. The molecule-thick paper was seriously expensive. They only made it offworld. Somebody had explained it to me once. The molecules were white on one side and black on the other. When you talked to it, the molecules would flip from white to black, forming words on the page. The thing could hold an unlimited amount of information. It'd just keep flipping molecules and changing the display.
From KOP, by Warren Hammond.
Published by Tor in 2007
Additional resources -

See also the entries for e-paper from Greg Bear's 2003 novel Darwin's Children. The description reminded me of the real-life electronic palimpsest created by Xerox:


(Gyricon bichromal beads from
Electronic Erasable Paper - Xerox Seeks E-Palimpsest
)

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Additional resources:
  More Ideas and Technology from KOP
  More Ideas and Technology by Warren Hammond
  Tech news articles related to KOP
  Tech news articles related to works by Warren Hammond

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