I disagree with the overweight thing. Go to any trendy city in America now and walk around downtown. You'll see a bunch of upper-middle-class people, and none

I disagree with the overweight thing. Go to any trendy city in America now and walk around downtown. You'll see a bunch of upper-middle-class people, and none of them are fat. People now spend time doing physical fitness activities that they didn't in decades past. They also eat a lot better; there's more awareness about some foods being unhealthy. In America, we're seeing a divide between the urban culture and the rural culture, where urban (mostly white) people have good economic success mostly, and are healthier, while rural people are going the other way; hang out with rural people sometime and you'll find they generally have terrible health. They eat cheap, crappy food, and they drive everywhere, and don't spend any time exercising. Ultimately, in the farther future, obesity will be cured by medical means. It's not really that complicated, and there's been a lot of research lately into how gut microbes affect it, and it turns out it's enormous. I predict that pretty soon we'll have gut microbe transplants being used to eliminate obesity, with people having their e.coli eliminated and replaced with versions that are engineered to keep them from getting fat, regardless of exercise. It won't be that long after that that they figure out how exercise affects the body and are able to replicate that with pharmaceuticals.