[allover]

Sure but that's all still about 'overeating' and 'hunger' (you feed a mice high fat foods, it triggers overeating)?

So it's still the case that if you keep your calorie intake below your TDEE, you won't regain the weight, whereas a lot of weight re-gainers like GGP claim some vague 'endocrine/metabolic' thing, when we have no evidence for that.