> For a simple way to understand this idea, let’s suppose you want to show your friend that you know how to get through a maze, without divulging any details about the path. You could simply traverse the maze within a time limit, while your friend was forbidden from watching. (The time limit is necessary because given enough time, anyone can eventually find their way out through trial and error.) Your friend would know you could do it, but they wouldn’t know how.

How would your friend know you solved it though? Does he have to take your word for it? Doesn't that defeat the purpose? This analogy seems flawed, correct me if I'm wrong

Edit: I misunderstood the kind of maze the article is talking about. Apparently it's not the pen and paper version.