[kidd]

...anatomically modern humans emerged from primate ancestors about 100,000 years ago, from a population of something like 10,000...

This is ignorance on display.

The author is apparently unaware of the population bottleneck caused by the Toba volcanic eruption some 70,000 years ago. Many theories suggest that we all evolved from as few as ten females. Plus or minus nine.

[Strategerist]

The author is apparently unaware of the population bottleneck caused by the Toba volcanic eruption some 70,000 years ago

That's been challenged in several recent papers.