Geoffrey MillerVerified account

"without having good role models, social norms, sexual scripts, or social support … Poly also lacks the legal status of being a protected minority, … open relationships incentivize people to stay healthy, fit, creative, and funny, because they’re always in the mating market."

"the only societies that have ever succeeded in becoming large-scale technological civilizations were the ones that adopted monogamous marriage as the gold standard for long-term pair bonds and family formation."

He says not need monogamy now re paternal certainty, STD cuts, & male sex inequality. "Many polyamorous people get married and raise kids. They can take advantage of all the commitment devices that help maintain long-term pair bonds, without buying into the sexual exclusivity."