As article points out, this does not solve all the things Rust does (apart for memory/performance, things like point 3.). So new code would be preferable in som

As article points out, this does not solve all the things Rust does (apart for memory/performance, things like point 3.). So new code would be preferable in something like Rust (and some other PLs). However lot of existing code is in C and most of it will stay in C. So Fil-C seems to be really useful here.