You're falling into the trap of an exclusive focus on an objective subset of the topic (or perhaps allowing yourself that luxury). This is a common tactic. It i

You're falling into the trap of an exclusive focus on an objective subset of the topic (or perhaps allowing yourself that luxury). This is a common tactic. It is, of course, not that simple. I don't think you really don't understand that people are referring to the various real difficulties of losing and keeping off weight, as opposed to some kind of natural law that makes weight loss physically impossible. Some people exaggerate the difficulty of maintaining a healthy weight, and others exaggerate the ease of it, usually with a selfish dose of snideness. Try to not be either of them - a big part of which means trying to recognize that other people's experiences and circumstances vary widely from your own, and humans generally have a hard time truly imagining what it's like even to be somebody where such differences are small.