Twin study suggests rationality and intelligence share the same genetic roots - the study suggests that being irrational, or making illogical choices, might simply be another way of measuring lower intelligence.

[u/mvea]

https://www.psypost.org/twin-study-suggests-rationality-and-intelligence-share-the-same-genetic-roots/

[u/Draugron]

Chicken/egg.

One could make the argument that those with generational wealth are the ones by whom success and social navigability, and therefore, intelligence, are measured.

So of course we'd be conditioned to base our metrics for intelligence around them.

[u/wycreater1l11 → u/Draugron]

I guess (at least theoretically) adoption studies could sort it out

[u/Draugron → u/wycreater1l11]

They have, ironically.

https://www.jstor.org/stable/26763905

You'll have to run it through sci hub or similar like I did, but they found across multiple variances that genetics had a near-negligible effect when isolated from other factors.

[u/wycreater1l11 → u/Draugron]

But then the “chicken/egg” should be considered solved..?

Ironically?

[u/Draugron → u/wycreater1l11]

Oh the chicken/egg comparison was in reference to how we determine intelligence metrics, not necessarily the adoption studies determining genetic influence on intelligence itself.