I happen to agree with the conclusion also. And you don't need a rigorous proof to do what you want to do. But I often find that people appeal/resort to "comm

I happen to agree with the conclusion also. And you don't need a rigorous proof to do what you want to do. But I often find that people appeal/resort to "common sense" when they don't have a coherent argument, and just can't conceive of any other point of view.