If go was fast enough why didn't you start out using it, or some other language that is 3x slower than rust but has gc and comfy ergonomics. C#, clojure, julia,

If go was fast enough why didn't you start out using it, or some other language that is 3x slower than rust but has gc and comfy ergonomics. C#, clojure, julia, ocaml( if you dont need threads). Or just plane Java.