Fixing something yourself vs shadowing someone else makes a huge difference. In fact, I'd say that was the author's point: shadowing someone you'll learn a litt

Fixing something yourself vs shadowing someone else makes a huge difference. In fact, I'd say that was the author's point: shadowing someone you'll learn a little bit, but you won't be tested on your understanding of the architecture. Yes, you may learn how to use the tools your mentor is using, but when it's your turn, how do you know which tool to start with and where to look first? If there's a fixed list of rote steps to follow to solve all problems then you don't have serious problems to solve.