I suspect that either your gut bacteria, or general homeostasis, don't make permanent changes based on one-off indulgences. I even think that bingeing gives you

I suspect that either your gut bacteria, or general homeostasis, don't make permanent changes based on one-off indulgences. I even think that bingeing gives you psychological safety to eat fewer calories -- your body "knows" it will catch up eventually, so it doesn't demand you get 2400 calories every single day. This is just my experience as someone who eats a full bag of Doritos/peanut butter cups every 3-5 days and got to middle age without getting fat.