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May 26th, 2007

Shaping the Future

My model of a long term high volume data storage medium is a synthetic diamond. Carbon occurs in a variety of isotopes, and the commonest stable ones are carbon-12 and carbon-13, occurring in roughly equal abundance. We can speculate that if molecular nanotechnology as described by, among others, Eric Drexler, is possible, we can build a device that will create a diamond, one layer at a time, atom by atom, by stacking individual atoms — and with enough discrimination to stack carbon-12 and carbon-13, we've got a tool for writing memory diamond. Memory diamond is quite simple: at any given position in the rigid carbon lattice, a carbon-12 followed by a carbon-13 means zero, and a carbon-13 followed by a carbon-12 means one. To rewrite a zero to a one, you swap the positions of the two atoms, and vice versa.


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