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There was a newsflash about how London cabbies brains differed, from "normal" people, in that they had to learn these routes through the maze that is London... (it is also referred to in the article below) and how this can learning actually physically modified their brains! and now to tie up with what you guys were doing with maps... someone mentioned the changed GPS might bring into play... now today I was reading this...

http://www.physorg.com/news/2010-11-reliance-gps-hippocampus-function-age.html

How it all meshes together, the brain internally uses maps/template and maps of templates it seems (I won't bore you with another link)... but it all reminds me of Mandelbrot, fractals (and Godel as he used a mapping mechanism for his famous proof)... I find it strangely exhilirating to think that this simple mapping principle is so powerful and so deeply engrained in our natures...