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re: Study: All Humanity Comes From One Couple.................... You don't say
Posted on 11/29/18 at 9:23 am to rickyh
Posted on 11/29/18 at 9:23 am to rickyh
quote:
And people can believe humanity lived here 2 and a half million years and did nothing.
Yea, it's almost as if having a crazy high pregnancy/infant mortality rate and having a life expectancy of 30 years or so affect population growth.
2
Posted on 11/29/18 at 9:40 am to Azkiger
quote:
Yea, it's almost as if having a crazy high pregnancy/infant mortality rate and having a life expectancy of 30 years or so affect population growth.
We can go at this in many ways, but I suggest we take all of the evidence to paint a picture.
You are saying that people had a life expectancy of 30 years. I suggest that is not known but we will go with it.
- Women can conceive as soon as they start having a menstrual cycle. let's go with 13.
- You state 30 years was the life span. That's the possibility of 17 kids. if we hold to the STRICT death at 30 and give birth at 13.
Posted on 11/29/18 at 3:05 pm to Azkiger
quote:
and having a life expectancy of 30 years or so
What utter and complete nonsense.
At no time in global history has the lifespan been less than about 65 years. You should stop posting on this topic. Your 'beliefs' are based on biased suppositions, and not actual data. The term life expectancy already factors in the infant mortality rate, but people that survive to age 5 have historically lived long lives.
quote:
That’s life expectancy at birth, a figure dramatically influenced by infant mortality—pegged at the time as high as 30 percent. It does not mean that the average person living in 1200 A.D. died at the age of 35. Rather, for every child that died in infancy, another person might have lived to see their 70th birthday.
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