Archaeologica.org

http://www.sciencedaily.com/releases/20 ... 223022.htm

Genetic evidence is revealing that human populations began to expand in size in Africa during the Late Stone Age approximately 40,000 years ago.

But...

For the first time ever, Hammer's team was able to investigate the timing of human population expansion by applying sophisticated inferential statistics to a large multilocus autosomal data set re-sequenced in multiple contemporary sub-Saharan African populations.

this sounds like a fancy way to say " we guessed."

I accept inferential statistics as a valid tool.
Also, the timing 40 kya fits a post-Toba-bottleneck scenario well.

"surveyed the genetic material of ~184 individuals from seven human populations .... approximately ten-fold population growth beginning well before the origin of agriculture"

archaeo wrote:I accept inferential statistics as a valid tool.
"surveyed the genetic material of ~184 individuals from seven human populations .... approximately ten-fold population growth beginning well before the origin of agriculture"

Apparently sex became popular.
'Cool' in today's jive.
That would constitute a cultural paradigm shift, no?

archaeo wrote:I accept inferential statistics as a valid tool.
Also, the timing 40 kya fits a post-Toba-bottleneck scenario well.

"surveyed the genetic material of ~184 individuals from seven human populations .... approximately ten-fold population growth beginning well before the origin of agriculture"

Don't mind me, Archaeo, I'm a suspicious old goat.

Somehow, everytime a computer is programmed the answer always seems to agree with the programmer.

Welcome, btw.