[Retric]

Out of Africa has meaningful consequences even if people mixed back in. For example our closest evolutionary cousins should barring evidence to the contrary also tend to hail from Africa as well.

It’s that kind of reasoning that makes it important to try and be accurate here. Not a fact in isolation but everything else that it implies.

[whimsicalism]

It's all a matter of how far back you look.

[Retric]

The time period you look at also informs what you can extract from that analysis. So it’s not an arbitrary choice free from consequences.