Thanks Patty, much appreciated! Yes, it is astounding how similar races are genetically. Due to cognitive bias, we overweight the obvious phenotype expressions, like skin color. AFAIK, genetic differences between men and women are limited to women having two X chromosomes and men having one X and one Y chromosome. I believe there are no genetic difference on other chromosomes. Although if you read the BL piece I am publishing tomorrow, you will see that our standard rendition of women = XX and men = XY has numerous exceptions. That piece is something of a companion piece to this one. Thanks much for your comment and support Patty!