Useful means actionable. Eating at a restaurant? Eat half the meal, take half home.
The reason folks find it hard to apply the simple thermodynamic truth is, they are actually working hard to eat as much as they can get away with. Instead of just eating very little and losing weight, which would in fact work for almost everybody.
The reason folks find it hard to apply the simple thermodynamic truth is, they are actually working hard to eat as much as they can get away with. Instead of just eating very little and losing weight, which would in fact work for almost everybody.