This was my first thought, and I was surprised they didn't mention it - perhaps simply because it's allegedly a controversial subject. Regards the controversy

This was my first thought, and I was surprised they didn't mention it - perhaps simply because it's allegedly a controversial subject. Regards the controversy - as with many others unburdened by formal training in the area, much of Sapir-Worf 'makes sense to me'. One area that I don't see discussed so much is variations of fluency within a language, and how that shapes the way a person can internally model, and obviously describe and influence to others, both physical objects as well as more nebulous constructs. Again, anecdotally, I've seen a strong correlation between skills with former and latter, though obviously it's not a simple, one-way, causal relationship. I vaguely recall an HN story last year, about a school in NY (US), emphasising rigously expanding the students' vocabulary & language skills based on this premise. Might have been the University Prep in Brooklyn, but what I can find of that one now seem to emphasis maths & physics above English.