And just because a study finds a p-value of <.05 doesn’t mean that it is meaningful information. There is probably some meaning behind these genes, but it’s not close to explaining why there is such a great deal of normal variation in intelligence. We’ve found many very meaningful SNPs, but not intelligence SNPs. There is much work left to be done; so far genetic intelligence seems complicated.
And just because a study finds a p-value of <.05 doesn’t mean that it is meaningful information. There is probably some meaning behind these genes, but it’s not close to explaining why there is such a great deal of normal variation in intelligence. We’ve found many very meaningful SNPs, but not intelligence SNPs. There is much work left to be done; so far genetic intelligence seems complicated.
Variation in a trait often means that it is not uniformly strongly selectively favoured.