I was just remarking to my wife today that this reminds me of the first half-hour of Threads. I doubt this is actually going anywhere, though.
Kevin didn't have limited powers; he intentionally didn't use them as part of his "do nothing" strategy.
(At least, I think. I wish they had played this up a bit more. The scene where he came into the bar to save Sam and everything went all blue and all hell broke loose - that was a little taste of it, I think. I mean, he destroyed CLU with just a thought.)
(Also, did anyone else think the Zuse character was more well-done when it was the Merovingian from Matrix: Reloaded?)
The most common gastric bypass surgery (the RnY type) actually has two modes of action: a restrictive component, which you address, and a malabsorptive component. That is, not only is the size of the gastric pouch restricted, but a section of the small intestine is completely bypassed.
Operations which restrict intake only (like gastric banding, for example) are not as effective. It has also been observed that the intestinal bypass impacts incretin response, and has other metabolic effects.
I won't deny that we, as a people, eat way too much. But more and more research is showing that this _might_ be more complicated than calories in, calories out.
The only problem with this argument is that most of the socialization that occurs in public school settings is unhealthy!