The thing being that C# has a feature for a whole bunch of idioms, but none of them are extensible and writing new ones requires a new version of the language.

The thing being that C# has a feature for a whole bunch of idioms, but none of them are extensible and writing new ones requires a new version of the language. The Clojure reducers, doto, ->>, go macro could all have been implemented in 1.0. (And two of them were.) I speak as someone who codes in C# for work and Clojure as a hobby. There's lots of things that just aren't quite possible in C#, and _everything_ is possible in Clojure. Pointfree is beautiful to read and grok. It's a little trickier to debug, since pretty much every debugger on earth needs points to inspect values.