People who follow me know that I stress the three laws of behavioral genetics, starting with the all-important First Law, all human behavioral traits are heritable.
OK, but that established, most people aren’t necessarily interested in heritability per se; they want to know about changeability. Can the trait in question be changed? Sure, there are non-genetic inputs to physical and behavioral traits, including “environmental” ones (note that I distinguish “non-genetic” from “environmental”). And indeed, human traits can certainly be affected by global and local environmental forces (again, notice that I distinguish the two).
That said, that doesn’t necessarily mean we can shape traits to be what we want them to be, even if we limit our target range. See this series of insightful tweets from Sam S/”misdreavus”, a regular commenter at HBD blogs who frequents Cochran’s & Harpending’s in particular. “misdreavus” is definitely one of the greatest – if not the greatest HBD commenter who doesn’t yet have his own blog (a title I would have given to Jason Malloy before he started blogging over at Human Varieties):
Good points. Expect more on the topic in the future.
My posts on free will: