Answer:
It means though you have learned many ways that it does not work you know the way it does not work the more things you know how it doesn't work the closer you get to learning how it does. Because you are slowly making progress and narrowing down ways that it doesn't work. It is having an optimistic outlook in the hard moments. Learning how it doesn't work can sometimes teach you why it really works in the end.
Step-by-step explanation: