Ahead of time, you can’t really tell precisely what problems you’ll be faced with—reality is allowed to throw pretty much anything at you. It’s a useful property, then, if decisions are possible to make in all situations, so you can guarantee that e.g. new physics won’t throw you into undefined behavior.
Ahead of time, you can’t really tell precisely what problems you’ll be faced with—reality is allowed to throw pretty much anything at you. It’s a useful property, then, if decisions are possible to make in all situations, so you can guarantee that e.g. new physics won’t throw you into undefined behavior.