It is rare that an article offends on both a scientific and social basis. These "new findings" that male and female brains differ are not new, and are not viewed as significant or convincing in the field of neuroscience. As is often the case, books and articles are written based upon the most provocative studies, not those that have strong, consistent, well supported conclusions. Fundamentally the human brain is far too plastic (especially so in children) for any supposed neurological difference between the genders to be identified as biology instead of upbringing. I would point Ms. Wolf to the work of neuroscientist Professor Gina Ripon at the University of Birmingham. Any differences between the sexes are often found to be quite trivial, for example one behavioral genetics study found that "a mere 3% of the variation in young children's verbal development is due to their gender." The so called "evidence" that male and female brains differ in any significant way is so weak, that basing any policy upon it would be incredibly dangerous. I expect better of Project Syndicate than to publish an argument based upon such hack science.