It is possible to lose weight, just very unlikely statistically speaking to lose it successfully then keep it off. I suspect that's because the fats like being fat. They like constantly grazing like the fucking cows they are. I suspect most of the calories their bodies use are spent on more chewing. Personally, I love that I can turn so little food energy into so much. 2k calories, which can fit on one plate quite easily, can be turned into hours upon hours of productivity. It can be turned into kinetic energy by my legs, which propel me down the road on my bike. I can use it to learn new things. I'm not just... storing it away endlessly. I think we need to go back to the mindset of gluttony and sloth being moral failings.