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Time since the first modern humans (250,000 y) is 5 thousand x Time since the launch of Intel's first microprocessor, the 4004 (50 y)
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Forest in Grenada (2011) (172 km^2)
If this was a standard unit ...
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.