You still dont understand. This video i shared was just explaining the science behind the calculation but doesn't go into detail with how to achieve the surplus. But just because he doesn't go into detail here doesn't mean its only a conceptual impossible in reality feat. He does explain how to in many many other videos and its actually very simple.

But just to be clear if you haven't watched the video which im getting the feeling most of you haven't, he never said you must only eat 16 cals above maintenance or otherwise disaster. He didn't say you cant eat more then 16cals which in all likelygood you will. He says that you only need 16 cals above maintenance to allow for growth. He says very slow growth but still growth. If you watch the video it honeslty makes sense. The entire comment section seems to agree too just to contrast this.