I agree, it's important to master something useful. But the hidden lesson in this blog post is to always apply that mastery to problem environments. The bigger

I agree, it's important to master something useful. But the hidden lesson in this blog post is to always apply that mastery to problem environments. The bigger the problem, the better. When things are going along smoothly nobody cares what you've mastered. In other words, if you want autonomy, relate to someone who genuinely needs help with the things you've mastered.