Some Israeli Scientists have inscribed the entire Bible on a pinhead. An amazing achievement for nanotechnology. Although this doesn't seem to be the slightest useful (I mean, who would want to read that?), it's still a great leap in nanotechnology. Combine this with Biotechnology, tweak it a little, and we'll have a cure for AIDS in a few decades.
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Feel free to share what you think this technology could be used for.