This topic is quickly going downhill in the comments, but I just wanted to clear some stuff up because there seems to be some "what he said isn't that bad!" People wrongly think he said women are bad or stupid but that's not what he did say. He also didn't -just- say men and women are different. He did say a 5-10% difference in certain traits is why there are huge discrepancies of women in leadership and science/engi…
The difference in interests is biggest in the most "proactive" countries, those that try the hardest to help women reach social equality with men. It's obviously not "biological", but it looks like some complex interaction of subtle social dynamics, not just women being told to "stay in the kitchen".