> Writing complex software without bugs is impossible. There are so many unexpected edge cases you will never think of them all no matter how large or small the

> Writing complex software without bugs is impossible. There are so many unexpected edge cases you will never think of them all no matter how large or small the team is. Yes and: Whenever you add new features you will create new edge cases for existing code. So even if you could evaluate all edge cases of existing code you would have to do that on your existing code base for all changes going forward.