I'm receptive to social science in all relevant areas, but I don't particularly trust it, especially on politically sensitive subjects. (After all, even ultra-precise, mostly apolitical subjects like physics and chemistry often have trouble with replication.) The untrustworthiness of empirical evidence in social science makes deduction especially important.

In the case of sex differences, we need only one empirical result to determine the null hypothesis: male and female members of H. sapiens have different reproductive incentives. The null hypothesis then follows from an application of simple logic. That I do find convenient.

This doesn't mean the null hypothesis is always correct, of course. For example, there is strong evidence that mean IQ for men and women is virtually the same, which suggests the null hypothesis in this case is wrong. Neither need the null hypothesis conform to a "sexist" narrative; e.g., credible studies in cognitive neuroscience show that women are better on average at multitasking and verbal fluency. But the entire mainstream is committed to marginalizing the null hypothesis whenever it contradicts the politically correct narrative, logic be damned.

You are evidently a supporter of the mainstream, which is why you deride my [use of mathematical notation](https://twitter.com/tqbf/status/493116213803757568) instead of addressing the content of my comment. My respect for your technical work is high, though, and I know you're smart and thoughtful. I suggest grappling with the strongest arguments of those you disagree with rather than resorting to such puerile snark.