But none of this is truly amazing. Because things must work these ways. While little in childhood determines an adult behavior, virtually everything in childhood changes propensities toward some adult behavior. Freud, Bowlby, Harlow, Meaney, from their differing perspectives, all make the same fundamental and once-revolutionary point: childhood matters. All that the likes of growth factors, on/off switches, and rates of myelination do is provide insights into the innards of that fact.
This is my basic problem with the idea that epigenetics "explains" everything, or even much of anything.
