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Why since mankind began only 115 billion humans have lived?

+5 votes
135 views
The scientist associated with the subject question made that statement and I wonder has anyone figured out why and how. On a straight line ancestry (takes two humans to make one) it would take over two trillion humans just to make me and thats only 38 generations. In my case only back to about 750 AD. We know that many humans have not been on this planet, so what is the answer?
in The Tree House by Anonymous Williams G2G6 Mach 1 (12.5k points)
I've been curious about that subject for some time.  Joseph, could you point us to the place where you found that info?
by Dennis Barton G2G6 Pilot (562k points)

2 Answers

+7 votes
 
Best answer
by Helmut Jungschaffer G2G6 Pilot (608k points)
selected by Kristina Adams
+3 votes
The ice age, famine, plagues, and wars, caused deaths and reduced the number of humans that could reproduce.
by Frank Gill G2G Astronaut (2.6m points)

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