Zig is a completely different language than Rust. Memory safety is just one aspect. I personally find Rust to be very difficult to read and can never manage to be productive in it.
Lacking memory safety is a fundamental mistake in my opinion, not merely one aspect. We have learned much from the days of C and C++, so much that companies are migrating away and finding that many of their bugs are solved with memory safe languages like Rust.
I forgot to follow up on this, I don't know how to make HN give me some kind of a notification on replies to my comments.
I should have been a bit more clear. I love memory safety. But I dislike a lot of other aspects specific to Rust. I would much prefer e.g. C with memory safety (somehow). So that is, for me, why not Rust. Rust is more more than just memory safety.
