I probably should commit to Go, Rust or Erlang but I want to create a model of multithreading that is easy to understand and not error prone. Multithreaded WAS

I probably should commit to Go, Rust or Erlang but I want to create a model of multithreading that is easy to understand and not error prone. Multithreaded WASM is awesome. My dream is a just in time compiler, performant, simple, easy, scalable, safe multithreaded runtime. I use Java, Rust and C for my multithreaded programs.