Because I don't think it's a realistic solution to say, for example, that in the lifetime of anyone currently alive that we're going to get, say, Dallas, TX to

Because I don't think it's a realistic solution to say, for example, that in the lifetime of anyone currently alive that we're going to get, say, Dallas, TX to have the built environment and food preferences of Japan. I said directly in my comment "I wholeheartedly agree that the obesity epidemic is a consequence of modern society". And I'm all for making cities more walkable, for example, and making it easier for people to get healthier foods. But I don't think these are realistic options for making a dent in obesity in America any time soon.