[valenterry]

This reply is pretty good. As a Scala developer, many people have told me that a lot of features of the Scala compiler are niche and will go away. I never thought so - and now a good part of then has appeared in Typescript and some in Rust. Python is also pushing forward with optional typing.

Therefore I think the chance is high that even if there are currently not too many languages with advanced features (generics are not advanced btw), we will see more and more of them in the future.