Study after study has repeatedly shown this to be untrue. People who think they "eat as much as they want" really don't eat as much as people who think they "eat almost nothing"
Try actually counting your calories over the course of a week.
Try actually counting your calories over the course of a week.
This doesn't actually refute what the OP was saying, which is that he could eat as much as he wants without gaining weight. Presumably he simply wants to eat less than many people.
Anecdotally, I find this to be true. Some people simply seem to "know" how much they need to eat to maintain a healthy weight on some instinctual level. It's not that they magically make the calories disappear, it's just that they feel satiated at appropriate levels of caloric input with respect to their physical output.
The Biggest Losers clearly lack this characteristic, and the way in which they lose the weight boot-camp style doesn't seem to impart that ability upon them. Some of us will always simply have to use other means to manage input and output if we want to regulate our weight effectively.
The real question is: Why are people like Kenji satiated at an appropriate level of calories while others are not?
And I think the answer is going to be a complex mix of physical, psychological, and societal factors.
Eating three meals a day at about 2,500 calories for a few weeks, and my body will adapt to feeling full at those portions.
Upping that to 3,000+ calories a day when on a bulk, and the first week or two are difficult, but then I adapt and feel hungry if I eat the smaller portions I used to eat.