no, it might be far-fetched.



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送交者: mangolasi 于 2006-1-09, 16:05:33:

回答: US life expectancy is now 77. What was it 50 years ago? 由 Enlighten 于 2006-1-09, 16:00:41:

For this kind of physical limit, it's better to assuming negative 2nd order derivative.



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