This doesn’t necessarily have to do with genetics but with the environment you live in when going to school. My parents and grand parents were both born in the

This doesn’t necessarily have to do with genetics but with the environment you live in when going to school. My parents and grand parents were both born in the countryside and couldn’t get algebra or calculus (whereas myself and my siblings didn’t have issues learning) because they were lacking the basis that you now more easily get in primary and secondary school if you have supportive parents and teachers. By the time you’re in college, it’s already over. It’s why good daycare / preschool / school for everyone matters, otherwise you’re just missing out on a lot of potential talent.