For a non-obese person calories also don't matter because if you eat equal amount of calories using sugar, almonds or olive oil, the effect will be completely different
I've observed obese people. And, no, they don't all eat simple carbs.
> Why? They are addicted to dopamine,
You can't be "addicted to dopamine". Dopamine plays a role (or, more accurately, different roles) in various addictions, but isn't the thing to which you are addicted.
> they tremble and get depressed if they don't eat sugar and carbs.
That sounds a lot like hypoglycemia (possibly resulting from chronic hyperinsulinemia), which is a fairly well-established thing, unlike folk-psychology "carbohydrate addiction".
> They overeat, that's the reason they are obese.
This is the one sane thing you say: yes, weight gain results from "overeating", that is, a calorie surplus.
> For a non-obese person calories also don't matter
"also"? As you correctly note previously overeating -- eating an excess of calories -- is where weight gain comes from. That's true whether the person is or is not obese at the time.
Calories absolutely matter. Both for obese people and non-obese people.
you should start with basics then. If you think there is no sugar and simple carbs addiction, wow
http://www.webmd.com/diet/ss/slideshow-sugar-addiction
http://en.wikipedia.org/wiki/Sugar_addiction
>Calories absolutely matter
OKOK I agree that calories make you fat of course, but if you are not addicted to cookies, sugar and other carbs you won't over consume calories. Why would you overeat broccoli with olive oil? So in this case, you can eat oil and lard.
That's what you just said. You're wrong, btw. Plent. Of morbidly obese and super obese people eat lots of fat.