It's insane how arrogant people can be about this. You have not accounted for all of the variables and that is blatantly obvious. The phenomenon is well known and there are multi-variable equations for it, many different models. One popular model is that NEET can decrease below the caloric deficit, meaning you still gain weight by becoming subconsciously lazier despite everything feeling equally difficult subjectively. There are several other more advanced models adding other variables, some depending on insulin sensitivity, for example. Anyway, no physics is broken, laymen are just naive to the complexity abd adaptability of biology.
200kcal/day is less than 10W. Since all energy the body uses is released as heat this puts the maximum sustainable heat radiation with such a diet at 10W.
That's about the level of a typical household LED, which at most feels slightly warm to the touch.
At that energy level you could not sustain weight while maintaining body temperature let alone having a healthy metabolism. That's just a plain fact.
You will lose weight long before you reach 200kcal/day.
That's a good argument against what I said for this particular case. I didn't realize 200kcal was so little. Imagine my comment was written in reply to a higher number though because that criticism is definitely valid for a large number of posts people make in general. ;)
But it is basic physics, which is in fact being violated. It's really very normal to require exceptional proof for this. Like literally any scientific study, not just an anecdote claiming magic.
It is the amazing the hoops people will jump through and the lies they will tell themselves and others rather than facing the obvious truth that they are consuming too many calories.
