Uriah

Less parsimonious than drift or founder effect. There were many migrations at the time, many founders. That's all you need to explain loss of haplotypes. No need to posit several independent selective sweeps by different Y haplotypes.

Since the scenario you suggest ( 17-1) is impossible, persistent advantage to haplotypes is far more likely. While we're at it, there's good reason to suspect selective advantages to certain mtDNA haplotypes.

In those scenarios, long-term advantage causes an effect that looks like an impossible 17-1 scenario - even when there never was one.

I see our disagreement: you think an extreme Y bottleneck is impossible, even briefly, and I along with the 100 authors on that paper disagree. Not much point in continuing then.

Of course it's impossible. Describe that society.

?? You described it yourself about 5 tweets ago.

Not at all. There was no generation anytime in written history, where 17 times as many women as men reproduced.