Yea I know, I was addressing that in my comment? You have languages like JavaScript which are very “expressive” in that it comes with very little functionality

Yea I know, I was addressing that in my comment? You have languages like JavaScript which are very “expressive” in that it comes with very little functionality but there are a wealth of libraries you can use to augment this. And this tradeoff is often lamented on HN since it’s never enough to just know JS; you have to know the particular libraries being used by the project. Contrast that with batteries included languages like python or go. And like I said above, Postgres extensions add features to the language, usually without any syntax changes (just new functions or operators). Isn’t this like a “library” in another language?