That doesn't answer either of my questions. Sorry I was unclear about "your defintion" - it was implicit and allowed for folding in all the "luck" aspects you a

That doesn't answer either of my questions. Sorry I was unclear about "your defintion" - it was implicit and allowed for folding in all the "luck" aspects you are including. I see why you are saying the factors are somewhat confounded, but that does not implicitly mean that separable analysis is not possible or useful. I don't think your analogy holds and these are nearly as coupled concepts as parts of a fruit.