inflammabl: thank you.
Pazia: I think what you are seeing is, if not just a coincidentally select group you've run into (it might be, you know), simply the results of a degree of compensation for cultural adaptation. They're no more intelligent than any other group, I imagine, they just might be in a situation, due to their size, where it's slightly more apparent.
Much like the fat girls who are so funny (SHE HAS SUCH A GREAT PERSONALITY) or brash -- both of those, while traits one might find in anybody of course, are not uncommon "adaptive" (defensive) personality elements for the obese.
People often focus on what they 'can' do well. At one time I focused on martial arts and rock guitar and singing and how I looked in leather and later, when I was unusually suddenly about 200# overweight, after getting over the suicidal impulse and having to radically revise my plans for my life, I focused on what was left -- mostly work, but also tons of (sedentary it so happens) personal interests. I wouldn't do it again voluntarily but even I had to admit that I was a lot less shallow once I got over myself.
I spent a lot more time reading and thinking and writing after I got fat that I hadn't spent before because I'd been "having a life" to a much greater degree then -- in the typical way people think of that -- far more social behavior. I became more of an intellectual after.
My intelligence did not increase in the slightest, probably. It's even possible that with declining health (the size reflected) it might have been worse. But my focus on the more cerebral, rather than physical, category of things in life did change. I was decently bright before but that wasn't really what people most noticed or remembered about me. Once I got very fat, though, I think it was. Maybe that is simply because it had less competition from other positive qualities, once the 'negative' element of social-response-to-fat took up front and center.
Fwiw. Who knows!
PJ