> I'm absolutely certain it isn't because westerners are smarter, better, etc (we aren't)... but there is something seriously weird over there at the same time (malnutrition, lack of basic formal education system, cultural differences, too many generations of instability (maybe one generation works ok, but 3 breaks things seriously))

I'm amused at how you can disclaim completely that Westerners might be smarter - perish the thought! - and then in the next breath suggest a major cause of that (lack of malnutrition) as the explanation.