I think this extends beyond the standard library. In my experience, once I've written a Clojure function, I rarely need to go back and edit it. The obvious, n

I think this extends beyond the standard library. In my experience, once I've written a Clojure function, I rarely need to go back and edit it. The obvious, natural way to implement anything also tends to be correct, concise, generic, and efficient. It certainly helps that the core library is stable, but that's not the only reason. Even when I'm not upgrading to a new version, Clojure code tends to be stable in a way that other languages are not. With languages like Python, Swift, or C#, I'll be constantly taking something I wrote, and modifying it to add a feature, and again to add another feature, and then re-architecting the whole thing to work in a fully generic way. Or I'm taking something obvious and simple, and changing it all around to make it more efficient. It's not simply an attribute of Lisp. Common Lisp makes changes which are simple to describe also simple to implement. Clojure quite often makes them unnecessary.