The Importance of Language Features in User Land

How do you feel about scenarios where the community gets to experiment with new language concepts in user land? And then there might be two or three competing ideas and one of them wins out. That's a great question. The way I've always thought about it is a language feature is something that can't be implemented in user land. But okay, but if we're talking about things you can implement in user land, they get the stamp and now they're like part of the standard library Or yeah, I think I have mixed feelings about that as an approach.