When you show a religious evolution denier a fossil that fills a gap in the fossil record, he says "Well now there are two gaps!"

When you show a woke evolution denier a systematic difference between two groups, he says "well now there must be this huge systemic bias!" https://twitter.com/weijima01/status/1316690214572695553

"Systematic bias" fills the same role as God of the Gaps: it has the same "gappy" quality that no matter how many pieces of evidence for human differences you give, it's always possible to posit that each one is caused by a nebulous aura of "Systematic bias".

Models where a biological factor like prenatal testosterone exposure affects both gender and causes some self-selection and differences in ability generically produce similar results to those found by @weijima01

See a basic model here: https://docs.google.com/spreadsheets/d/1069VXpvnMy1mGNpMaIxH25NSiQa9sYzZH4cu4Crfr3o/