London cab drivers also show an increase when acquiring 'the knowledge'. http://www.scientificamerican.com/article.cfm?id=london-taxi-memory http://www.scienti

London cab drivers also show an increase when acquiring 'the knowledge'. http://www.scientificamerican.com/article.cfm?id=london-taxi-memory http://www.scientificamerican.com/article.cfm?id=london-taxi...