> Both Hare and Zig fix "C's Biggest Mistake": https://www.digitalmars.com/articles/C-biggest-mistake.html.

I think any new language (including Rust, Go, Nim, etc) that wants to displace C should not be trying to fix C's biggest mistake, it should be trying to replicate C's biggest success: simplicity.

Hence the growing popularity of Go as a C replacement. I look at Zig and Nim, and they look like viable replacements too.

Time will tell.