So I agree with your general point that it is important to consider negative pleiotropy between traits. However in the specific case of happiness and intelligence, the first two studies I found from googling suggest that happiness and intelligence are positively correlated.12
Here’s a meta-analysis of 23 studies that found no correlation between intelligence and happiness at an individual level but a strong correlation at the country level.
So I think that unless you’re dealing with much stronger techniques than simple embryo selection, this is not a concern. However, if it was you could simply select for both genetic predisposition to happiness and genetic predisposition to high intelligence.
Well, I think we are in agreement, and it all comes down to evaluating expected happiness. Maybe one can select for both intelligence and happiness, But that does not seem to be covered in OP, which seems like a pretty big omission, just assuming that intelligence is an unquestionable positive on a personal scale.
So I agree with your general point that it is important to consider negative pleiotropy between traits. However in the specific case of happiness and intelligence, the first two studies I found from googling suggest that happiness and intelligence are positively correlated.12
Here’s a meta-analysis of 23 studies that found no correlation between intelligence and happiness at an individual level but a strong correlation at the country level.
So I think that unless you’re dealing with much stronger techniques than simple embryo selection, this is not a concern. However, if it was you could simply select for both genetic predisposition to happiness and genetic predisposition to high intelligence.
Well, I think we are in agreement, and it all comes down to evaluating expected happiness. Maybe one can select for both intelligence and happiness, But that does not seem to be covered in OP, which seems like a pretty big omission, just assuming that intelligence is an unquestionable positive on a personal scale.