Becoming a person of unlimited potential. Being capable of understanding & tackling anything, understanding the world you live in, not living like a marrionette shadow puppet your life.
> How much time do I have to spend in the good old hard learning command line to replicate, say, 5% of Intellij Idea's refactoring capabilities and code navigation?
Two afternoons learning CodeMod would provide a lifetime of infinite capabilities, versus some very limited preset scripts. You would be vastly vastly vastly greater, for a tiny amount of dickering around on your own.