[rrr_oh_man]

...Are you habitually chugging diesel fuel for lunch?

But to address your point: It seems like a disingenious and pedantic argument.

Can you come up with edge cases where my one-liner (Calories In - Calories Out) is not 100% accurate? Yes. Is that the case for the absolutely overwhelming majority of people? No. Over 70% of people in the US are overweight or obese. That's more than 2 in 3. Are we all suffering from some exotic, unknown, mysterious disturbance of the gut microbiome? Or is it more likely that we just move too little while eating too much? I think I know the answer.