[JoeAltmaier]

That's a good book.

That 'identical demographics' part is perhaps a tautology? They're mostly male, because they're mostly male?

Of course we understand there are 1000 reasons for the disparity, discussed elsewhere.

[Miraste]

I don't think it's a tautology to say HN's users are mostly male because the group it draws from is mostly male. There's room for competing theories like some quality unique to the website. To put my thought in bad ASCII flowchart form:

Male tech startup people -> Male HN users -> Male-dominated interest areas -> Male author recommendations

[JoeAltmaier]

Ah! I see.