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Aug 21, 2003

Amsterdam Real Time

Amsterdam Real Time offers a model of how to wire a whole population with GPS to keep track of their daily movements through a city, which of course can be the first step to charging for street use. Or more.

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If you haven't, read Neal Stephenson's Cryptonomicon. I've heard it called "nerd-boy masturbatory fiction, both figuratively and literally" by those who don't like it, but it has some interesting mathematical parts to it even if you don't like the story.

In particular, I'm thinking of the section whereby the main character wants to put little beacons on everybody in London's forehead. He suggests recording the square waves coming off people's beacons as they step up and down curbs when crossing streets--record enough ups and downs and times in between them, and you can assemble the data into a street map of London. The book is full of such entertainingly useless means of data generation. :)

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