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Old 12-27-2010, 10:51 AM
Bima Bima is offline
 
Join Date: Feb 2010
Posts: 6
Default Re: Science Saturday: Christmas Optimism Edition (John Horgan & George Johnson)

FYI WolframAlpha.com is a good site to find answers to these types of questions. A number I keep in mind is that ~ 6.5% of the people whoever llived are alive today.
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