That paper also seems to heavily qualify the findings, implying that environmental factors may dominate genetic ones (or may not, the point is that we don't kno

That paper also seems to heavily qualify the findings, implying that environmental factors may dominate genetic ones (or may not, the point is that we don't know): However, these loci explain only a small proportion of the genetic variance. The “missing heritability” may be explained by other genetic mechanisms and gene*environment interactions