Not only that, but CICO on its own terms just isn’t at all useful. It’s like saying “the cure to poverty is to make more than you spend.” Like, no shit. It’s just fully handwaving in terms of anything actionable. What are the barriers to exertion? What effect does food type have on feeling satiated? Is there a biochemical mechanism? Psychological? Social?
It’s just an absurd reduction to “personal responsibility” that seems to be the default answer to any widespread, population level problems that the speaker doesn’t really understand.
Oh to be young.