Great talk, one of my inspirations. The "nub" (slightly edited): "A language design can no longer be thing. It must be a pattern, a pattern for growth". "My point is that a good programmer does not just write programs. A good programmer builds a working vocabulary. A good programmer does language design, though not from scratch, but building on the frame of a base language" https://youtu.be/_ahvzDzKdB0 Oh, the paper…
"nub" - I think you might mean "point" or "crux"? Main Entry: bottom line Part of Speech: noun Definition: indispensable content Synonyms: basis, conclusion, core, crux, determination, essence, fiber, final decision, fundamentals, income, key point, last word, loss, main idea, main point, main thing, meat and potatoes, name of the game, net, nitty-gritty, nuts and bolts, point
"This is the nub of what I want to say" is a direct quote from the paper/talk.