I'm happy to see some new ideas in Ruby frameworks but at this point if I'm going to go to all the trouble of learning a new framework I'll learn a new language

I'm happy to see some new ideas in Ruby frameworks but at this point if I'm going to go to all the trouble of learning a new framework I'll learn a new language too. A lot of the problems of Rails (slow, poor concurrency story, dynamic typing) are Ruby problems not Rails problems. A few years ago there weren't a lot of great options but now we have Go, Scala, Clojure, C# on Linux, Elixir, Swift (maybe eventually) etc.