It's still too dangerous to suggest that

an element of intelligence might be inherited.

In this New Scientist Article we find the following:

BRAIN differences seem to separate rich and poor children. The discovery could guide ways to improve cognition in deprived, underperforming children.

Children in higher-income families, with more-educated parents, are known to outperform their less-privileged peers in intelligence tests and academic results, perhaps because they have access to more books and educational toys and tend to be exposed to less stress.

Now, there's good evidence that things like autism runs in families but is any one prepared to suggest that high (or low) intelligence might also run in families?

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