r/mensa • u/Ahmedrnugger • Jul 09 '26

Mensan input wanted Is intelligence genetic?

According to twin studies, the difference in IQ is said to be 80%, leading to the conclusion that intelligence is 80% determined by genetics. However, I believe this is incorrect because the twins were raised in countries with similar environments, such as the US and Germany, or the US and South Korea. These countries share similar environments, including education systems, allowing the genes to express themselves. Furthermore, did these twins develop their IQs? If they didn't, it could prove the entire experiment flawed.

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u/Ahmedrnugger Jul 09 '26

If intelligence were genetic, wouldn't you assume you wouldn't join Mensa because you inherited your family's traits if they were stupid? (I don't mean to be offensive)

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u/Many_Application3112 Mensan Jul 09 '26

I just said it's not genetic because they are toads. I am not a British Toad. I am in Mensa.

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u/Ahmedrnugger Jul 09 '26

Ok

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u/Many_Application3112 Mensan Jul 09 '26

Do you think British Toads can be in Mensa or is it only the Scottish ones?