How Does Gelfand's Research Improve Our Understanding of the Great Gender Divergence?

Where's this demand for democracy coming from in Western Europe? Does it reflect our security and stability? Gelfand argues that population density motivates cultural tightness. There are very strong institutions of caste, Hindu nationalism and patriarchy in the densely populated gangetic plane in India. Is that a coincidence? What's the relationship between population density and patriarchy in India? Final question, which I will be thinking about for months on end, how does Gelfand's research improve our understanding of the great gender divergence?