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"
Oh, the paper if you don't want to watch the whole thing:
https://www.cs.virginia.edu/~evans/cs655/readings/steele.pdf
You see this more and more in "test languages" like cucumber. These languages more explicitly allow programmers to specify domain items and behavior, much more so then general programming languages like Jav, C#, js, etc. I'm currently experimenting with a piece of software that actually does have a specific domain language defined using ANTLR. I'm totally unsure of this will make any sense, but at least it is fun to do. One benefit I can see already is that I now have fully typed & typechecked logging :). Another aspect I'm experimenting with is using it as a replacement for sais "test languages".
You can find my grammar here: https://github.com/generateui/jsettlers-web/blob/master/jset...
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.