This has all been covered quite extensively in the thread. If the above statement is the sum of your understanding of the evidence, all I can say is, read the thread and make a case that my summary of it was in any way lacking-- which you have so far failed to do. Also, be sure to pay attention to the rather crucial point that your above remark curiously ignores-- the issue of the thread was innate gender differences in mathematical ability, controlled for discrimination and environmental effects when they are present. Or don't you understand the difference?