You seem to be reading a lot into what I wrote. I never said anything about a "character defect", or that the problem is easy to solve. I'm saying that easy or hard, we do have agency. In particular, I disagree with these two statements from GP:

> People who keep on gaining weight until they die must have a broken thermostat set on "high". It can't be psychological.

> Because conscious thought is not a replacement for automatic regulation.

I skimmed the article, but only because I've already read an entire book on the topic. I understand that there are hormonal effects on weight. That's no reason to throw your hands up and declare that you have no agency in the matter.