How many of you have kids? Damn few. The LessWrong mindset is maladaptive. It leads to leaving behind fewer offspring. A well-adapted human cares above all about sex, love, family, and friends, and isn't distracted from those things by an ADD-ish fascination with type theory. That's why they probably have more sex, love, and friends than you do.

The survey seems to confirm this - at least the part regarding about children, less so about relationships.

Data point: I have four children and I do have open-ended interests but it depends on the balance. Children do a lot to the balancing here. But I agree that it is difficult to find a matching partner.