As important as it is to have expertise and proficiency in a single skill, I also believe that the more diverse your knowledge base the easier it is to pick up

As important as it is to have expertise and proficiency in a single skill, I also believe that the more diverse your knowledge base the easier it is to pick up new things when you need to. But maybe I am just trying to make excuses for myself, maybe if I learn a new language/framework/IDE every month I will get better at learning new languages/frameworks/IDEs.