Can two dim-witted parents have clever kids?
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yep.
the genetic aspects of intelligence are polygenic, that is, they are able the interaction of many genes. so far about 500 have been identified in intelligence.
that’s a whole lotta interactions.
random genetic differences because, y’know, evolution, are the starting point.
then comes epigenetics, or how environmental factors interact with genes.
having a baseline of a brighter than average brain can be enhanced or nerfed by environmental conditions like if a kid is being starved by their parents either physically (food) or cognitively (not interacting with the toddler, or abusing the kid).
Absolutely.
My cousin’s parents are so dumb and dysfunctional it takes them a week to put together a 4 piece puzzle.
He, on the other hand has, is a doctor, multiple black belts, a great wife, and a really smart little boy to look after.
Genetics isn’t everything.
There isn’t necessarily a strong genetic link between for intelligence, there is some correlation but there’s no mechanism for intelligence being heritable (not as far as I know). So yes, with the right learning, and parenting, any parent can have intelligent children, and barring intellectual disabilities, anyone can become more clever
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