Yea, epigenetics has been blowing my mind lately. I think it was in Science News recently about cross-generational epigenetics and miRNA. And also I was reading about the presence of in utero testosterone and the thickness of the corpus callosum and the relationship with math ability with a negative effect/correlation on the presence of testerone in math gifted boys (and if you line up the math club next to the wrestling team, did we not already instinctually guess that that effect existed?)