Then it's a good example, and I'm with you that your weight is determined by more than whether you have the willpower to say "today I'm going to exercise and not eat too much". (Though most researchers probably agree with Taubes on this: http://wholehealthsource.blogspot.com/2013/01/comment-in-nature.html .)

I think Stephan on Whole Health Source does a good job of refuting Taubes' claims on the particular importance of insulin resulting from carbohydrate consumption (I can't remember specific posts, but I think there are several others in addition to the one Chris linked to), but it might be that I would think otherwise if I were a bit more knowledgeable. He had some sort of falling out with Taubes at some point, and, like Taubes, he has a theory about what causes obesity (http://wholehealthsource.blogspot.com/2011/11/brief-response-to-taubess-food-rewad.html) and is presumably disproportionately likely to interpret evidence in ways that support his theory.