Then, those features are mis-named. Your car or computer is notifying you of an event that's already happened, not warning you. They aren't warnings, and shouldn't be called such, imho.
OTOH, the "oil" light in a car warns that the oil pressure is low, and that if the matter isn't looked into, damage will likely occur. That's a warning proper. -frank Rob Brigham wrote: > When you suffer a non-critical error in software you often get a warning > after the event. It is notifying you that there may have been a problem > but that the software believes it has performed the vital parts of the > task. The warning light for your fuel emmisions in the car comes on > after they have exceeded expected levels, not when it thinks they are > going to in the future. Yes, granted the word warn likely means in > advance, but it is not absolutely implicit. > -- "The optimist thinks this is the best of all possible worlds. The pessimist fears it is true." -J. Robert Oppenheimer