For example, yesterday I burned ~750kcal on the treadmill. Are you trying to tell me this makes no dent in the calories I consumed throughout the day?
If my objective was to lose weight, are you implying that doing such a workout couldn't lead to a calorie deficit and therefore expenditure of stored fat?
I suspect he meant something a bit more holistic/behavioral ("In a study of people who promised to X...") rather than in a purely mechanical/metabolic sense.
If the person is only thinking "exercise will make me weigh less", that outcome is unlikely because modern society makes it deceptively easy to wipe out all your gains with a "small" snack, and because the conversion of fat to muscle doesn't show much on a scale.
For example, yesterday I burned ~750kcal on the treadmill. Are you trying to tell me this makes no dent in the calories I consumed throughout the day?
If my objective was to lose weight, are you implying that doing such a workout couldn't lead to a calorie deficit and therefore expenditure of stored fat?