HN user
It is worth pointing out that controlling and maintaining fire is distinct from knowledge of techniques to build fire ex nihilo. There are still groups that lack that technology.
I reckon he is citing this article: What Makes You Click? Mate Preferences and Matching Outcomes in Online Dating http://papers.ssrn.com/sol3/Papers.cfm?abstract_id=895442
FTA: "Women, on the other hand, prefer men who are taller than themselves, and they have a particularly strong aversion to shorter men. For example, our estimates imply that compared to a man who is five inches taller than a woman and earns $ 50,000 per year, a man who is five inches shorter than a woman would need to earn slightly more than half a million dollars per year to make up for his shortcoming."