In contrast, compiler errors are becoming better and better every day. And where they became cumbersome and unhelpful (e.g. C++ via GCC), competition helped: Ei

In contrast, compiler errors are becoming better and better every day. And where they became cumbersome and unhelpful (e.g. C++ via GCC), competition helped: Either through other programming langauges (e.g. OCaml, Rust), or through other compilers for the same language (e.g. C++ via Clang).