Yeah, statistically a boy is 33% more likely to be gay for each older brother his mother has borne. The theory is that the mother develops antibodies in response to carrying a boy, and those antibodies kick in and increase cortisol production in subsequent male pregnancies. The cortisol impacts fetal development.

Another clear statistical signal is if a mother's life is very stressful during gestation. (Again, cortisol. IIRC, ~4% of straight men report this, over 25% of gay men report this.) That theory fits me better.

It's like nature is saying either "I'm in trouble and need a resource provider if my genes are to be passed on" or "Ok, we have enough mouths to feed, time to make more resource providers so that the next generation can survive."

Yeah, statistically a boy is 33% more likely to be gay for each older brother his mother has borne.

Another clear statistical signal is if a mother's life is very stressful during gestation. (IIRC, ~4% of straight men report this, over 25% of gay men report this.) That theory fits me better.

It's like nature is saying either "I'm in trouble and need a resource provider if my genes are to be passed on" or "Ok, we have enough mouths to feed, time to make more resource providers so that the next generation can survive."