If it's faster or uses less memory, that's something that can be easily measured.
If it's more secure, that's harder to measure. But that's not even the tagline, just that it's written in Rust.
If it's more secure, that's harder to measure. But that's not even the tagline, just that it's written in Rust.
— that's easy to measure, if it's written in C or not (or some other memory unsafe language)