I love Rich Hickey's analogy of the language as an instrument. I am a pretty good musician and can make decent sound from most instruments within a few hours. That doesn't mean I can make music with it. For example, the tambourine has over 90 unique sounds it can generate in the hands of a master. Concertos have been written for the instrument. I can do about 3 of them rather poorly.

Better to hire experts than polyglots if you want to make a concerto. Actually, it is better to design great software with the advice of great players then let them rock out while you stay out of their way.