"The film is instead an attack on consumerism and wasteful consumption—the great sins of Western life. But it links up obesity, sloth, stupidity, and environmental damage, as our inevitable penance for those sins."

The film is saying something far more damning (and accurate) than an attack on consumerism and wasteful consumption. No, the movie masterfully portrayed a kind of distracted passivity [very American] that led people to become so disconnected from their environment (and thus to neglect it) that they weren't aware of the pool, the track, or even really each other (or in times past, all the litter piling up). By allowing themselves to become distracted, they became slothful, neglectful, obese, etc. by default. The root sin isn't sloth, or neglect; those are secondary. The root sin is to allowing one to become so completely distracted from one's environment (even one's body).

[I could go on some diatribe about how it's all a metaphor about the social construction of reality in modern American society, and the media, but do you really want to read that? Didn't think so.]

What the characters were doing instead was directing their entire focus on computer displays inches from their eyes - a portrayal that perhaps every fraddict should wince at.

Think I'll go to the gym.