Your logic is flawed. The only limiting factor is calories in. It is impossible to gain weight for calories you have not eaten. None of your analysis in anyw

Your logic is flawed. The only limiting factor is calories in. It is impossible to gain weight for calories you have not eaten. None of your analysis in anyway shows, or even hints at the 'fact' that Eating more will necessarily make you weigh more. It is totally possible that someone can eat 3k calories a day, but no carbs, and this could have all types of effects; like a slight increase in body temperature due to a different rate of caloric burning, or maybe not everything is getting digested and he is shitting out 1.5k calories a day for some dietary reason you don't understand. In the same way you cannot say "well logically, I put 5 gallons of gas in a car and went 25 miles, therefore there must be 1 gallon of gas left" without knowing specifics about an engine; you cannot do the same with humans, which you essentially are. Further, our bodies/engines are dynamic; and some of our internal systems are more or less effecient depending on a number of factors that you don't understand (for example, it is possible that eating certain types of calories have chemicals/enzymes related to them that cause other systems in the body to change effeciency). You have one side right: If you want to lose weight you can be absolutely sure that by cutting down calories, below a certain threshold, you will lose weight. But, then you go too far and say this is the only thing at play. In fact, you don't have any logical reason to make the second statement; it admittedly seems to make sense at face value, but ketosis is absolutely real, and people are shedding weight and still eating a ton of calories, regardless of whatever graphs/analysis you are making.