alt Hacker News"If you are looking for that one trick that lets you get ahead and jumpstart your career, my advice to you is: Don’t choose the path of least resistance. When training a muscle, you only get stronger with resistance. The same is true for learning any new skill. It is when you struggle with a specific problem or concept that you tend to remember."
Pretty nice description.
As with anything, there's also too much of a good thing though.
In my own career I switched role to get more time on a area where I felt I needed more growth an practice. Turns out I never got really very good at it, and basically was just in a role I wasn't great at for 6 years. It was miserable. My lesson is "if you know you are bad at something, don't make it load-bearer in your life or career".