Well, yes, under normal circumstances things work properly and do not need to be debugged. But generally eventually any system encounters abnormal circumstances, and one does not want the correct answer to be “give up on that system forever and go home”.
Well, yes, under normal circumstances things work properly and do not need to be debugged. But generally eventually any system encounters abnormal circumstances, and one does not want the correct answer to be “give up on that system forever and go home”.