The evidence purporting to show the schizophrenia is a genetically-based condition comes from family studies, twin studies, and adoption studies. In my book I argue that all of these studies are fatally flawed in ways that cannot be fixed, and tell us nothing. But now the new new science of genome-wide association studies has enabled scientists to go over the human genome with a fine-toothed comb, and that have not found any gene that causes schizophrenia or any of the other functional disorders listed in the DSM. As I stated in my article, the effect sizes of the so-called schizophrenia-associated alleles are on the order of one in five hundred, or even less. All of them put together are said to account for something like two or three percent of the population susceptibility. The fact that schizophrenia is not a genetically-based condition should have been greeted as great news, because that means that the deciding factor is in the environment, and that is something we can change. I acknowledged that people vary in their susceptibility to trauma, and genes many have something to do with that, and so what? As I asked in my book, if a child is being abused, do we stop the abuse, or do we give her a blood test? And if the test reveals she has a low genetic risk score for schizophrenia, do we leave her in the abusive situation?