Dak
mentat
And, it means that genetic/molecular foundations alone aren't predictive of behavior, and therefore are insufficient for making any kind of social judgments on what behaviors particular persons might be genetically predisposed for.
EDIT: I'm sorry, not predisposed for, but rather what behaviors particular persons might exhibit. Predisposition doesn't mean exhibition in the first place, and the neurological layer refracts that association even further.
I don't know that it's an accurate characterization to say that the neurological layer "refracts" the association. Rather, it is part of the process of the emergence from basic parts to complex systems. May as well nominate any part of the body as "refractors" of molecular predispositions.
I think the reason for pushback from certain places on this topic is that while there are many possible pitfalls for gene editing etc in unintended mutations, the real concern is that knowledge of associations or even the arguments of associations are going to run afoul of equalist dogma. "New Phrenology!" and all that. I have concerns about gene editing, but that isn't one of them.