Usually software design debates (such as this one) are not about the state of a software application right now (the 0's and 1's), but about how quickly it can c

Usually software design debates (such as this one) are not about the state of a software application right now (the 0's and 1's), but about how quickly it can change, how well it can be understood, and how amenable it is to debugging. None of those are binary concepts. Not to mention that software applications can have many states to reason about. And many (most?) applications are undecidable, and hence resistant to analytical closure.