This week, Robert Plomin, professor of behavioral genetics at King’s College London, published a paper showing that a child’s educational success can be predicted by their genes. Genetic data from 20,000 DNA variants across several genes collectively account for 10% of the differences in children’s educational achievement age 16. At the most extreme ends of this genetic variation is an entire exam grade difference—from A to B grade for those with the highest polygenic score, to B to C grade for those with the lowest.