How many people have lived on this planet?

[Siege]

Is there any way to get an aproximation of the number of people that have lived on Earth for the last 6000 years?

[Grey Fox]

109 947 781 641 people in 1998.

http://www.faculty.rsu.edu/~felwell/Ecology/The%20Number%20of%20People%20That%20Have%20Ever%20Lived.htm

50,000 years, freaking god-fearer. Evolution is FACT.

[Neil]

I don't think you can get an acceptable number Siege.  You won't find a person capable of thinking it through who would start 6,000 years ago with two people, because only imbeciles accept the Jewish creation myths as fact.

[Darth Wagtaros]

There is a school of thought, a lame one, says that the world is going to end soon because most people who would live have already lived.

[Razgovory]

There is a school of thought, a lame one, says that the world is going to end soon because most people who would live have already lived.

I read about that.  I figured it was kind of a strange circular reasoning.

[Slargos]

There is a school of thought, a lame one, says that the world is going to end soon because most people who would live have already lived.

It's not entirely unreasonable as clearly humanity has been churning out people with neither soul nor sentience for quite some time now.

What happens when ALL of them run out? Just look at Somalia or for that matter most any other african nation.

[DisturbedPervert]

What a terrifying subject to think about.  I think I need a drink now.

[Siege]

109 947 781 641 people in 1998.

http://www.faculty.rsu.edu/~felwell/Ecology/The%20Number%20of%20People%20That%20Have%20Ever%20Lived.htm

50,000 years, freaking god-fearer. Evolution is FACT.

How can I do the math starting 6000 years ago?

[Neil]

109 947 781 641 people in 1998.

http://www.faculty.rsu.edu/~felwell/Ecology/The%20Number%20of%20People%20That%20Have%20Ever%20Lived.htm

50,000 years, freaking god-fearer. Evolution is FACT.

How can I do the math starting 6000 years ago?

You can't.

[Caliga]

I suspect you probably *could* but only if every woman had like 50 kids, and all of those kids survived long enough to reproduce and had like 50 kids of their own.

[Neil]

Besides, you need to try and define personhood.  What counts as a person?  Only the genus Homo?  Homo sapiens?  Homo sapiens sapiens?

[Caliga]

Besides, you need to try and define personhood.  What counts as a person?  Only the genus Homo?  Homo sapiens?  Homo sapiens sapiens?

Stop trying to make his head explode. 

[Viking]

I suspect you probably *could* but only if every woman had like 50 kids, and all of those kids survived long enough to reproduce and had like 50 kids of their own.

starting with adam and eve, with 2 surviving kids (not accounting for incest) with 20 year generations you get over 6000 years 2x10^90 people, which is a problem since there are only about 3x10^79 hydrogen atoms (90% of all atoms) in the universe.

We breed like fucking locusts...


Edit: My math was wrong, my numbers are not for 2 surviving kids but rather 4 

with 2.1 kids 20 year generations we only have 4.5 billion.

My bad.

[Caliga]

Yeah but that doesn't account for epidemics, famine, and genocide.  I have no idea how you would model that in.

[Grey Fox]

The link a provided assumes, if I understand it right, 80 new birth per 1000 person.