Home » Open thread 6/7/2025

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Open thread 6/7/2025 — 8 Comments

  1. “If you’re a person who ovulates…” Grrr.

    A mix of science (maybe, re fraternal) and silly metaphor (re identical).

    I’ve read that the occurrence of identical twins is not the result of a genetic predisposition, but I’m not sure. Among my in-laws, there is an identical twin. Her twin had identical twins. She also has first cousins who are identical twins. Maybe it’s just a coincidence.

  2. @Watt:Among my in-laws, there is an identical twin. Her twin had identical twins. She also has first cousins who are identical twins. Maybe it’s just a coincidence.

    The rate is about 3.5 per 1000 births. For an identical twin to have identical twins, if that happens at random at that same rate, then that’s about 12 in one million. There’s been 3-4 million births per year in this country for the last 30 years; about every year there should be around 25 people born who are an identical twin and will give birth to an identical twin.

    It’s a big country. Odds against winning Powerball are higher but SOMEONE does.

  3. I agree with Watt. “If you’re a person who ovulates . . .” is where I quit listening.

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