Here are the peak years of various personal technologies according to my history theory:
5352 BC - peak of personal *farms? 2661 BC - peak of personal spears? 703 AD - peak of personal houses? 1377 AD - peak of personal books? 1713 AD - peak of personal *sailboats? 1881 AD - peak of personal guns 1965 AD - peak of personal cars 2007 AD - peak of personal computers 2028 AD - peak of personal *phones? 2038 AD - peak of personal AI's? 2043 AD - peak of personal nanobots?Each of these peaks is in the exact center of various advancement ages.
July 2010
April 2010
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January 2010
August 2009
July 2009
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February 2009
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December 2008
November 2008
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March 2008
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November 2007
September 2007
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December 2006
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February 2006
January 2006