Re: Total number of humans in the past 150,000 years

| Brablo wrote:
| This is a hard problem. Assume that:
| 1. the life span is 50.
| 2. the population growth rate is 1.0%/year
| 3. the population now is exactly 6B
| 4. people have kids at 25.
| 5. equal gender distribution.
| 6. everyone gets married and has kids.
| 7. humans have only been around for 150,000 years or so.
| what is the total number of people who lived on the earth?
|
| i keep hearing that most of the humans who lived on earth lives on it
| right now!

First of all, the life span wasn't close to 50, at least, a couple
of centuries ago. Death during childbirth was quite common for
females. Also, marriage was much earlier. ________Gerard S.


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Relevant Pages

  • Re: Total number of humans in the past 150,000 years
    ... the population growth rate is 1.0%/year ... everyone gets married and has kids. ... humans have only been around for 150,000 years or so. ... > i keep hearing that most of the humans who lived on earth lives on it ...
    (sci.math)
  • Total number of humans in the past 150,000 years
    ... the population growth rate is 1.0%/year ... everyone gets married and has kids. ... humans have only been around for 150,000 years or so. ... i keep hearing that most of the humans who lived on earth lives on it ...
    (sci.math)