I went pretty wide on languages too. I kinda wish I spent that time learning more useful things though. It's certainly nice to be exposed to different languag

I went pretty wide on languages too. I kinda wish I spent that time learning more useful things though. It's certainly nice to be exposed to different language concepts, but I think there's too much conceptual overlap between e.g. C# and Golang for there to be that much benefit from it. If I had to pick languages that changed my thinking the most, they would probably be: Haskell, Erlang, Clojure, Prolog, and R. Unique languages like Erlang/Elixir and Prolog can be "10x" languages - they were written for specific purposes and if your problem fits that purpose it will be much easier to solve than in most other languages.