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					Originally Posted by JamesB
					
				 
				Actually .. the math seems somewhat valid.  This is a HIGHLY interesting topic - I wonder if it has been studied at the intellectual level (uni.). 
			
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  Well the concept is very reminiscent of "Drake's equation" for determining the chances of intelligent life existing somewhere else in the galaxy:
http://www.daviddarling.info/encyclo...D/DrakeEq.html
a pretty cool concept.