[Genealib] Sci American article (Sep 2007) Do living people outnumber the dead?

[Tom Kemp]

Scientific American has published an interesting article: Do living
people outnumber the dead? (Sept 2007) pp. 126.

See: http://genlibrarian.blogspot.com/2007/09/scientific-american.html

Interesting for genealogists - it estimates the number of people that
have ever lived - as compared to the number living today. It puts in
perspective our task of documenting every person and putting them
correctly in the family tree.