[hedgehog]

This simplistic model sounds nice but (and he notes this in the article) doesn't pass the test of explaining the dynamics of weight/gain loss in live humans. Lots of people have pet theories ("just eat meat" or whatever) but researchers who work on this stuff don't seem to think it's such a simple or settled question. I'm an unexceptional counterexample: Despite substantial variation in how I eat and exercise over the last 20 years or so, not disciplined at all, my weight has varied by less than 10%. Is there some secret thing I'm doing that protects me? I doubt it, I think there's just a lot of variation in how different people's bodies run that means some people's lives are a lot harder and there's no silver bullet.